Math & Statistics Calculators
Free calculators for percentages, averages, ratios, fractions, and everyday maths — with step-by-step working shown for every calculation.
Maths and statistics calculators for students, professionals, and everyday problem-solving. This category covers percentages, averages and means, ratios, fractions, LCM and GCD, exponents, roots, scientific notation, rounding, and general arithmetic. Every calculator shows its working so you can understand the solution, not just get the answer.
Popular Math & Statistics Calculators
All Math & Statistics Tools
10 carefully crafted calculators and tools to help you with math & statistics
Average Calculator
Paste any list of numbers and instantly get the mean (average), median, mode, minimum, maximum, range, count, sum, and both sample and population standard deviation. Handles decimals and negatives.
Exponent Calculator
Calculate a base raised to any exponent — positive, negative, or fractional. See the expanded multiplication for whole-number powers, and handle roots via fractional exponents.
Fraction Calculator
Add, subtract, multiply, or divide two fractions and get the answer fully simplified, as a decimal, and as a mixed number. Shows exact whole-number results via the greatest common divisor.
LCM & GCD Calculator
Find the LCM (lowest common multiple) and GCD / HCF (greatest common divisor) of two or more whole numbers instantly, using the Euclidean method.
Percentage Calculator
A free percentage calculator that answers the three questions people actually ask: what is X% of a number, what percent one number is of another, and the percentage increase or decrease between two values. The formula is shown with every result.
Random Number Generator
Generate one or many random whole numbers between any minimum and maximum, with an option for no duplicates. Great for draws, giveaways, games, sampling, and decision-making.
Ratio Calculator
Reduce any ratio to its simplest form (two or three terms), see it as a decimal and a '1 : n' scale, and solve proportions like 3 : 4 = 9 : ? by leaving one value blank. Handles decimals too.
Rounding Calculator
Round any number to a set number of decimal places (with round-up and round-down shown), to significant figures, or to the nearest 10, 100, 1000 or any multiple.
Scientific Notation Converter
Convert any number to scientific notation (a × 10ⁿ) and E-notation, or expand scientific notation back to a plain decimal. Works both directions, for very large and very small numbers.
Square Root Calculator
Find the square root, cube root, or any nth root of a number. Handles decimals and negative numbers (for odd roots), and shows a check so you can see the result is right.
From finding what percentage a score represents to working out an average or simplifying a fraction — CalcPool's maths tools give instant answers and show every step of the working. Ideal for students checking homework, professionals doing quick analysis, and anyone who needs a reliable number fast. All tools are free and show their methodology.
Why Use CalcPool Maths Tools?
Step-by-step working
Every calculator in this category shows the full calculation process — not just the answer. Ideal for students who need to understand the method, not just the result.
Everyday and advanced
From simple percentage calculations (what is 30% of 450?) to statistical averages, standard deviations, and root and exponent tools — all in one place.
No calculator app needed
Access any maths tool instantly from any browser on any device. No download, no installation, no account.
Frequently Asked Questions
Common questions about math & statistics calculators and tools
Q.What maths calculators does CalcPool have?
CalcPool's maths category has 10 free tools: percentage calculator, average (mean, median, mode, range & standard deviation), ratio, fraction, LCM & GCD, exponent, square root, scientific notation, rounding, and a random number generator. Every one shows its step-by-step working.
Q.Do the calculators show their working?
Yes. Every CalcPool maths tool shows the step-by-step calculation method below the result. This makes them ideal for students who need to learn the process, not just get an answer.
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