School Maths Calculators
Calculators for the maths you do in Class 1 to 12 — fractions and decimals, long division, rounding, prime factorization, exponents, square roots, quadratic equations, mean and standard deviation, probability, area and perimeter, ratios, LCM and HCF and Roman numerals. Each one shows the working the way your NCERT textbook does, so you can check homework and learn the method, not just the answer.
All tools
- Area and perimeter of 8 shapes with the formula and steps.⭐ Popular · FreeOpen →
Area Calculator
Class 1–10Calculator - Numbers to Roman numerals and back, 1–3999, with a 1–100 chart.FreeOpen →
Roman Numerals Converter
Class 1–8Converter - Square and cube roots, simplest surd form (√72 = 6√2) and steps.FreeOpen →
Square Root Calculator
Class 6–12Calculator - Add, subtract, multiply, divide fractions; mixed ↔ improper with steps.FreeOpen →
Fraction Calculator
Class 1–10Calculator - LCM and HCF by prime factorisation, 2 to 10 numbers.FreeOpen →
LCM and HCF Calculator
Class 1–10Calculator - SD and variance (sample and population), mean, median, mode, grouped data.FreeOpen →
Standard Deviation Calculator
Class 9–12 · CollegeCalculator - P(E), complement, two events (and / or), coins, dice and playing cards.FreeOpen →
Probability Calculator
Class 9–12Calculator - Discriminant, nature of roots, exact surd and complex roots, factorisation.FreeOpen →
Quadratic Equation Solver
Class 9–12Calculator - Is it prime? Prime factorization, factors, nearest primes, primes in a range.FreeOpen →
Prime Number Checker
Class 1–10Checker - Decimal ↔ fraction in simplest form — recurring decimals like 0.1(6) too.FreeOpen →
Decimal to Fraction Calculator
Class 1–10Converter - Powers like 2¹⁰, 2⁻³ and 8^(2/3), laws of exponents, scientific notation.FreeOpen →
Exponent Calculator
Class 6–12Calculator - Round to the nearest 10, 100, 1000, decimal places or significant figures.FreeOpen →
Rounding Off Calculator
Class 1–12Calculator - Long division the school way: bring down, subtract, remainder and decimals.FreeOpen →
Long Division Calculator
Class 1–8Calculator - Simplify ratios, solve proportions and divide in a ratio.FreeOpen →
Ratio Calculator
Class 6–12Calculator - Mean, median, mode and range of a list of numbers.FreeOpen →
Average Calculator
Class 6–12 · CollegeCalculator
Frequently asked questions
Do these calculators follow the NCERT method?
Yes. LCM, HCF and square roots use prime factorisation, fractions use the LCM method, the triangle area uses Heron’s formula when three sides are given, and every answer lists the steps you can copy into your notebook.
Which classes are these maths calculators for?
Long division, rounding, Roman numerals, fractions, primes, LCM/HCF and area are taught from Class 3–6; decimals, exponents, square roots, ratio and averages from Class 6–8; quadratic equations, statistics, probability, Heron’s formula and surds in Class 9–10, and standard deviation in Class 11. Use the Class filter to see the tools for your class.
Can I use them for competitive exams?
Yes. Area, square roots, ratio, average and LCM/HCF questions appear in the quantitative aptitude section of SSC, banking and railway exams, and each page includes solved examples.