Grade Calculator: Convert Any Score to a Letter Grade
Convert any test score to a letter grade instantly.
Show detailsHide details
Enter your marks and total to instantly see your percentage, letter grade, and whether you passed — for US, UK, German, Pakistani, Indian, and Nigerian grading systems. Works for any score out of any total, not just round numbers. Use the Weighted Grade mode to combine multiple test sections, or the Reverse mode to find out exactly what score you need on your next test to reach your target grade.
Loading calculator...
Instant Answer: Common Scores to Grade
Skip the calculator — here's the grade for the exact scores people search most, across all 7 systems
Shortcut
Percentage = (Marks Scored ÷ Total Marks) × 100 — then match to your country's band above
Grade for common fraction scores
| Score | % | US | UK A-Level | UK GCSE | Germany | Pakistan | India | Nigeria |
|---|---|---|---|---|---|---|---|---|
| 5/6 | 83.33% | B | A | 8 | 2 | A | A2 | A |
| 33/40 | 82.50% | B- | A | 8 | 2 | A | A2 | A |
| 67/80 | 83.75% | B | A | 8 | 2 | A | A2 | A |
| 58/70 | 82.86% | B- | A | 8 | 2 | A | A2 | A |
| 71/80 | 88.75% | B+ | A | 8 | 2 | A | A2 | A |
| 58/75 | 77.33% | C+ | B | 7 | 3 | B | B1 | A |
| 49/55 | 89.09% | B+ | A | 8 | 2 | A | A2 | A |
Grade for common round percentages
| Score | % | US | UK A-Level | UK GCSE | Germany | Pakistan | India | Nigeria |
|---|---|---|---|---|---|---|---|---|
| 50% | 50.00% | F | D | 5 | 4 | D | C2 | C |
| 60% | 60.00% | D- | C | 6 | 4 | C | C1 | B |
| 75% | 75.00% | C | B | 7 | 3 | B | B1 | A |
| 90% | 90.00% | A- | A* | 9 | 2 | A1 | A2 | A |
These are exact conversions for the scores people look up most often, but the calculator above works the same way for any score out of any total — including odd numbers like 17/23 or 146/200. India column shown is CBSE; Nigeria column is the NUC 5-point scale.
How It Works
Grade Calculation Formula
The mathematics behind every grade conversion
Formula
Percentage = (Marks Scored ÷ Total Marks) × 100 Weighted Grade = Σ (Section Percentage × Section Weight) ÷ Σ Weights Required Score (Reverse) = (Target Grade% × Total Remaining Weight − Current Weighted Score) ÷ Remaining Weight
Variables
Percentage Score
The raw percentage is calculated by dividing marks scored by total marks possible, then multiplying by 100. This percentage is then mapped to a letter grade using the appropriate grading scale for your country. For example, 73/92 = 79.35% which maps to a B+ in the US system, a B in UK A-Level, and a 2 (Gut) in the German system.
Weighting Factor
In weighted grade calculation, each test section is assigned a weight representing its contribution to the final grade. The formula multiplies each section's percentage by its weight, sums all weighted scores, then divides by the total weight. Example: if an essay worth 60% of the grade scores 75% and a presentation worth 40% scores 85%, the weighted average is (75×60 + 85×40) / (60+40) = (4500+3400)/100 = 79%.
Required Score (Reverse Calculation)
The reverse calculation answers: 'What percentage do I need on the remaining work to achieve my target grade?' It works by calculating how many weighted grade points you still need (Target % × 100 − current weighted total) and divides by the remaining weight. This gives the minimum percentage needed on the final assessment.
Grade Point Average (US 4.0 scale)
The US GPA scale assigns numerical values to letter grades: A=4.0, A-=3.7, B+=3.3, B=3.0, B-=2.7, C+=2.3, C=2.0, C-=1.7, D+=1.3, D=1.0, F=0.0. Our calculator shows both the letter grade and GPA equivalent for US system users. Most US colleges require a minimum 2.0 GPA (C average) for academic standing.
Note: Grading scales vary by institution even within the same country. The scales used in this calculator represent the most widely adopted national standards — US: standard A–F scale; UK: Ofqual GCSE 9–1 and A-Level A*–E; Germany: Kultusministerkonferenz 1–6 scale; Pakistan: Federal Board / Matric and Intermediate grading; India: CBSE Class 10/12 grading; Nigeria: National Universities Commission (NUC) 5-point A–F scale used across NUC-accredited universities. Some universities use modified scales — always verify your institution's specific thresholds.
Example: Converting 73 out of 92 to a Grade
Full step-by-step conversion across all 5 grading systems
Calculate percentage
73 ÷ 92 × 100 = 79.35%
US grade
79.35% → C+ (77–79.99% range). GPA equivalent: 2.3 out of 4.0
UK A-Level grade
79.35% → B (70–79% range). Passes comfortably; meets university entry requirements for most courses
UK GCSE grade
79.35% → Grade 7 (70–79% range). Equivalent to the old A grade. Strong pass
German grade
79.35% → 3 (Befriedigend / Satisfactory) — 67–80% range. Passing grade, average performance
Pakistan grade
79.35% → B (70–79% range). 'Very Good' — solid result on Federal Board scale
India CBSE grade
79.35% → B1 (71–80% range). 8 CGPA equivalent. 'Very Good' performance band
Nigeria grade
79.35% → A (70–100% range). Grade Point 5/5 — the top band on Nigeria's NUC 5-point scale
Reference Guide
| unit | value | note |
|---|---|---|
| US Letter Grade | C+ | 79.35% → 77–79.99% band, GPA 2.3 |
| UK A-Level | B | 79.35% → 70–79% band, standard pass |
| UK GCSE | Grade 7 | 79.35% → 70–79% band, former A grade |
| Germany | 3 (Befr.) | 79.35% → 67–80% band, Satisfactory |
| Pakistan (Fed Board) | B | 79.35% → 70–79% band, Very Good |
| India CBSE | B1 / 8 CGPA | 79.35% → 71–80% band, Very Good |
| Nigeria (NUC) | A / GP 5 | 79.35% → 70–100% band, top grade point |
Grading Scales by Country
Official grading thresholds used in this calculator
The US letter grade system runs from A+ (97–100%) through F (below 60%). Most schools consider 70% or above a passing grade, though some require 60%. GPA equivalents range from 4.0 (A) to 0.0 (F). Grades below C (70%) may put students at academic risk. The +/- system adds granularity within each letter band.
Best for: US high school, college, and university courses. Also used in Canada, many Caribbean and Latin American institutions.
The UK uses two separate systems. GCSE (ages 14–16) uses a numeric 9–1 scale where 9 is the highest and grade 4 is the standard pass (formerly C). A-Level (ages 16–18, university entry) uses A*–E where A* requires 90%+ and grade E (40%+) is the minimum pass. Grade U is unclassified — below the minimum standard.
Best for: UK secondary school (GCSE), sixth form and college (A-Level). Also used in many Commonwealth countries.
Germany uses a 1–6 scale where 1 (Sehr gut / Very Good) is the highest and 4 (Ausreichend / Sufficient) is the lowest passing grade. Grade 5 (Mangelhaft / Poor) and 6 (Ungenügend / Insufficient) are failing grades. Unlike most systems, the scale runs highest-to-lowest — a common source of confusion for international students.
Best for: German Gymnasium, Realschule, Hauptschule, and university. Also used in Austria and partially in Switzerland.
Pakistan's Federal Board and most provincial boards use an A1–F scale. A1 (90–100%) is the highest distinction, and grades down to E (40–49%) are passing. F (below 40%) is a fail. Students need at least E grade to pass individual subjects in Matric (SSC) and Intermediate (HSSC) examinations.
Best for: Pakistan Matric (SSC), Intermediate (HSSC), Federal Board, Punjab Board, Sindh Board examinations.
India's Central Board of Secondary Education (CBSE) uses a 10-point CGPA scale with grade bands from A1 (91–100%, CGPA 10) down through D (33–40%, CGPA 4) as the minimum pass. Grades E1 and E2 are fail grades. The CGPA is calculated as the average of the best five subjects in Class 10.
Best for: CBSE Class 10 and Class 12, Indian school board examinations. Some state boards use similar scales.
Nigerian universities operate under a grading framework standardised by the National Universities Commission (NUC), which accredits all Nigerian universities. The 5-point scale runs from A (70–100%, 5 grade points) down to F (below 40%, 0 grade points), with a minimum pass at E (40–44%). CGPA is the credit-weighted average of grade points across all courses, translating to degree classifications: First Class Honours (CGPA 4.50–5.00), Second Class Upper (3.50–4.49), Second Class Lower (2.40–3.49), Third Class (1.50–2.39), and Pass (1.00–1.49). Some older universities and STEM programmes set the A threshold at 75% rather than 70% — use the calculator's scale customizer if that applies to your institution.
Best for: Nigerian university courses and CGPA calculation. The A=70% threshold means Nigerian percentage scores can look lower than US/UK equivalents for the same letter grade.
Why Grading Systems Differ Globally — and Why It Matters
Grading systems reflect deeper cultural and pedagogical philosophies about education, assessment, and the purpose of grades themselves. The United States A–F system, which dates to the late 19th century, is designed to differentiate student performance across a wide range and communicate results intuitively to parents, employers, and institutions. The GPA system — developed as a standardisation tool — allows comparison across subjects and institutions. The UK's shift from the traditional A*–C GCSE system to the numeric 9–1 scale (introduced 2017–2019) was explicitly designed to 'differentiate more clearly at the top' — creating more distance between the highest performers. Grade 9 was intended to be harder to achieve than the old A* — only approximately 3–4% of entries receive a 9 in most subjects. Germany's inverted 1–6 scale is notorious for confusing international students — a grade of 1 means excellent, while 4 is barely passing and 6 is the worst possible. This system emphasises high standards; German universities typically require an average of 2.5 or better for admission to competitive programmes. Pakistan's grading system has evolved significantly since the transition from percentage-only reporting. The current A1–F scale was introduced to bring Pakistan's system closer to international standards while maintaining local context. Importantly, the passing threshold of 40% (grade E) is lower than the US (60%) or UK A-Level (40% for E grade — similar, but with a tighter upper range). Research by the American Educational Research Association (Brookhart, 2004) found that grading practices are among the most inconsistently applied aspects of education — even within the same school, identical work can receive different letter grades from different teachers. This variability is the strongest argument for transparent, formula-based grade calculation rather than subjective assessment.
Key Features
💡 Pro Tips
- →Use Weighted mode whenever you have multiple components counting towards a final grade — essays, midterms, finals, and participation often have different weights. Simple averaging gives you the wrong answer when weights differ.
- →The Reverse calculator is most useful in the final weeks of a term. Enter all grades you have received so far, their weights, and your target final grade — it tells you exactly what you need on the remaining assessments. This removes the guesswork and lets you focus your revision accurately.
- →Teachers: use the Class mode to identify the natural grade boundaries in your class distribution before assigning letter grades. If 15 students cluster between 58–62%, the difference between a C and D comes down to 4 marks — a significant outcome from a small difference in raw score.
- →When converting grades for university applications that cross grading systems (e.g. UK student applying to US university), use this calculator to show both systems simultaneously. Admissions officers appreciate transparency about grading scale differences.
- →In the German system, remember that a 4.0 grade average is a very different outcome than a US 4.0 GPA — it is the minimum passing grade, roughly equivalent to a US D. When reporting German grades internationally, always clarify the scale direction.
- →Make sure your weights add up to 100% before trusting the Reverse calculator's result — both Reverse and Weighted mode show a running total so you can check at a glance. If a section is genuinely still ungraded, leave its score blank rather than entering 0; the calculator excludes it from the average instead of penalising you for a grade you haven't received yet.
- →If your school uses grade boundaries that don't match the defaults shown here, tap "View / customize scale" and edit the bands directly — your custom scale is saved on this device and appears alongside the built-in systems every time you come back.
Common Mistakes
Using simple average instead of weighted average when sections have different weights
If your midterm (30% weight) scores 55% and your final exam (70% weight) scores 85%, your simple average is 70% but your weighted average is 55×0.3 + 85×0.7 = 16.5 + 59.5 = 76%. That is a C vs a C+ in the US system — potentially a meaningful difference. Always use Weighted mode when sections carry different proportions of the final grade.
Assuming the same percentage means the same grade in every country
73% maps to very different outcomes globally: C+ in the US (good), B in the UK (solid pass for A-Level), 3/Befriedigend in Germany (satisfactory, below average in context), B in Pakistan (Very Good), and B1 in India (Very Good, 8 CGPA). A Pakistani student with 73% would feel undervalued by a US C+ label — always select the appropriate system.
Forgetting to include all grade components in the Reverse calculator
If you enter only the grades you have received and forget to include a participation grade or a small assignment that has already been graded, the Reverse calculation will be inaccurate. Enter every completed assessment first to get the correct 'score needed' figure.
Treating the UK Grade 4 as equivalent to the old grade C
While Grade 4 is officially called a 'standard pass' and grade 5 a 'strong pass', universities and employers increasingly distinguish between the two. Many UK university courses specify grade 5 (strong pass) in GCSE English and Maths as a minimum — not grade 4. Always check specific requirements before assuming grade 4 is sufficient.
Research & Citations
All factual claims on this page are sourced from peer-reviewed research
- [1]
Brookhart, S.M. (2004). Grading Practices and the Measurement of Learning. Applied Measurement in Education, 17(4), pp. 323–334.
Research on grading inconsistency and the case for formula-based transparent grade calculation
View source - [2]
Ofqual (Office of Qualifications and Examinations Regulation) (2023). GCSE, AS and A Level Grade Boundaries. Ofqual Official Data.
Primary source for UK GCSE 9–1 and A-Level A*–E grading scales and thresholds
View source - [3]
Federal Board of Intermediate and Secondary Education (FBISE) (2023). Grading System for SSC and HSSC Examinations. FBISE Official Grading Policy.
Primary source for Pakistan Federal Board grading scale A1–F
View source - [4]
Central Board of Secondary Education (CBSE) (2023). Grading System and Assessment Pattern — Class X and XII. CBSE Academic.
Primary source for India CBSE grading scale, CGPA calculation methodology, and conversion formula
View source - [5]
National Universities Commission (NUC) (2024). Benchmark Minimum Academic Standards — Grading Framework. NUC Official Policy.
Standard 5-point A–F grading scale (grade points 0–5) used across NUC-accredited Nigerian universities; First Class Honours requires CGPA 4.50+
This calculator is a reference tool and does not constitute medical advice. For personalised sleep health guidance, consult a qualified healthcare provider.
Last updated: February 11, 2025
Creators
Computer Scientist & Education Tools Developer
Reviewers
Technical Reviewer
Table of Contents
Quick Facts
Related Tools
Privacy Guaranteed
Your data never leaves your browser. All calculations are 100% private.
Frequently Asked Questions
What grade is 75%?
75% corresponds to different grades in different systems: C (73–76%) in the US system; a high 5 or low 6 in UK GCSE (60–69% is grade 6, 70–79% is grade 7 — so 75% is grade 7); a B in the UK A-Level (70–79%); a 3 (Befriedigend/Satisfactory) in the German system (67–80%); a B (Very Good) in Pakistan (70–79%); and a B1 (71–80%) / 8 CGPA in India. Use the calculator above to check any score against any grading system.
What grade is 60%?
60% converts differently by country: D- (60–62%) in the US — technically passing but below average; Grade 6 in UK GCSE (60–69%); C in UK A-Level (60–69%); a 4 (Ausreichend/Sufficient) in Germany (50–66%); C (Good) in Pakistan (60–69%); C1 (Average, 6 CGPA) in India CBSE (51–60%); and B (4 grade points) in Nigeria's NUC scale (60–69%).
How do I calculate a weighted grade?
Multiply each section's percentage score by its weight, sum all the results, then divide by the total weight. Formula: Weighted Grade = Σ(Score% × Weight) ÷ Σ(Weights). Example: Essay (50% weight) scores 72%, Exam (50% weight) scores 88% → (72×50 + 88×50) ÷ 100 = (3600+4400) ÷ 100 = 80%. Our Weighted mode does this automatically — add sections and their weights and it calculates instantly.
What score do I need to get a B?
Use the Reverse calculator mode. Enter all grades you have received so far with their weights, set your target grade to B (80% in the US system), and the calculator will tell you exactly what percentage you need on the remaining assessments. The answer depends entirely on your current standing and how much weight remains.
What is the passing grade in Pakistan?
In Pakistan's Federal Board (and most provincial boards), the minimum passing grade is E (40–49% range) for individual subjects. Students need at least 33% in each subject to avoid a compartmental (partial fail) and 40% overall to pass the examination. Our calculator maps Pakistani grades from A1 (90–100%) down to E (40–49%) as passing, and F (below 40%) as a fail.
How is CGPA calculated in India?
CBSE CGPA is calculated by summing the grade points of your best five subjects and dividing by 5. Grade points are assigned as: A1=10, A2=9, B1=8, B2=7, C1=6, C2=5, D=4. To convert CGPA to approximate percentage, multiply CGPA × 9.5. For example: CGPA 8.4 × 9.5 = 79.8% (approximately). Our calculator shows both the grade letter and the CGPA equivalent for Indian scores.
What is 5/6 as a grade?
5 out of 6 is 83.33%. That's a B in the US, an A in UK A-Level, Grade 8 in UK GCSE, a 2 (Gut) in Germany, an A (Excellent) in Pakistan, an A2 (9 CGPA) in India CBSE, and an A (5 grade points) in Nigeria's NUC scale.
What is 33/40 as a grade?
33 out of 40 is 82.5%. That's a B- in the US, an A in UK A-Level, Grade 8 in UK GCSE, a 2 (Gut) in Germany, an A (Excellent) in Pakistan, an A2 (9 CGPA) in India CBSE, and an A in Nigeria's NUC scale.
What is 67/80 as a grade?
67 out of 80 is 83.75%. That's a B in the US, an A in UK A-Level, Grade 8 in UK GCSE, a 2 (Gut) in Germany, an A (Excellent) in Pakistan, an A2 (9 CGPA) in India CBSE, and an A in Nigeria's NUC scale.
What grade is a 60?
A score of 60 (assumed out of 100, i.e. 60%) is a D- in the US, Grade 6 in UK GCSE, a C in UK A-Level, a 4 (Ausreichend) in Germany, a C in Pakistan, a C1 in India CBSE, and a B in Nigeria's NUC scale. If your 60 is out of a different total (e.g. 60 out of 80), use the calculator above — the grade depends on the resulting percentage, not the raw number.
What is a 3 out of 6 grade?
3 out of 6 is 50%. That's an F in the US, a D in UK A-Level, Grade 5 in UK GCSE, a 4 (Ausreichend) in Germany, a D (Satisfactory) in Pakistan, a C2 (Marginal, 5 CGPA) in India CBSE, and a C in Nigeria's NUC scale.
Does this calculator work for any score, not just round percentages?
Yes. Enter any marks scored and any total marks — 73 out of 92, 17 out of 23, 146 out of 200, anything — and the calculator computes the exact percentage and maps it to a grade in all 7 supported systems. You don't need your numbers to match a common example for it to work.
What grading system does Nigeria use?
Nigerian universities use a 5-point scale standardised by the National Universities Commission (NUC): A (70–100%, 5 grade points), B (60–69%, 4), C (50–59%, 3), D (45–49%, 2), E (40–44%, 1, minimum pass), and F (below 40%, 0). CGPA is the credit-weighted average of grade points, with 4.50+ required for First Class Honours.
Can I customize the grading scale to match my school's exact policy?
Yes. Tap "View / customize scale" next to the grading system selector to see the exact grade bands for any of the 7 built-in systems, or edit them — change the pass mark, grade boundaries, labels, and points — and save it as your own custom scale. It's stored on your device and shows up as an option every time you return.
Can I download my grade result or a full class list?
Yes. Simple and Weighted modes let you download a branded PNG result card you can save or share. Teacher mode lets you download the full class list — every student's score, percentage, grade, and pass/fail status — as a CSV file.