Math Tools
Online calculators: expressions, BMI, mortgage and loan payments, tip splitter, GPA and final-grade, interest, statistics, GCD/LCM, primes, bases, and more. All run in your browser.
Evergreen calculator traffic meets developer math in one category: BMI, mortgage and car-loan payments, tip splitter, GPA and final-exam grades, compound interest, percentage change, expression evaluation, statistics, and number-theory helpers. Everything runs locally in your browser—no account, no upload for these calculators.
All free online tools · Free PDF tools · QR code generator · Citation generator · BMI calculator · Mortgage calculator · Loan payment calculator · GPA calculator · Expression calculator
Popular Math Tools
Most used tools in this category:
- BMI Calculator – Compute Body Mass Index from height and weight (metric or imperial). Educational use only — not medical advice.
- Mortgage Calculator – Estimate monthly mortgage payment from loan amount, annual interest rate, and loan term in years. Amortizing loan formula.
- Loan Payment Calculator – Calculate monthly payment and total interest for a fixed-rate loan (auto, personal) using principal, APR, and term in months.
- Tip Calculator – Split the bill: enter subtotal, tip percentage, and number of people. Shows tip amount and per-person totals.
- GPA Calculator – Compute semester or cumulative GPA on a 4.0 scale from credit hours and letter grades (A–F with ±).
- Final Grade Calculator – What do you need on the final? Enter your current grade, final exam weight, and target course grade.
- Compound Interest Calculator – Calculate compound interest. A = P(1+r/n)^(nt). Principal, rate, time, compounding frequency.
- Percentage Change Calculator – Calculate percentage increase or decrease between two numbers. Old value, new value, get % change.
- Math Expression Calculator – Evaluate mathematical expressions: 2+3*4, sqrt(16), 2^10. Supports basic operations and common functions.
- Simple Interest Calculator – Calculate simple interest. Principal, rate, time. I = P × R × T.
- Mean & Median Calculator – Calculate mean (average), median, and mode from a list of numbers. For statistics and data analysis.
- Standard Deviation Calculator – Calculate standard deviation and variance. Population and sample formulas. For statistics.
All Math Tools
BMI Calculator
Compute Body Mass Index from height and weight (metric or imperial). Educational use only — not medical advice.
Mortgage Calculator
Estimate monthly mortgage payment from loan amount, annual interest rate, and loan term in years. Amortizing loan formula.
Loan Payment Calculator
Calculate monthly payment and total interest for a fixed-rate loan (auto, personal) using principal, APR, and term in months.
Tip Calculator
Split the bill: enter subtotal, tip percentage, and number of people. Shows tip amount and per-person totals.
GPA Calculator
Compute semester or cumulative GPA on a 4.0 scale from credit hours and letter grades (A–F with ±).
Final Grade Calculator
What do you need on the final? Enter your current grade, final exam weight, and target course grade.
Compound Interest Calculator
Calculate compound interest. A = P(1+r/n)^(nt). Principal, rate, time, compounding frequency.
Percentage Change Calculator
Calculate percentage increase or decrease between two numbers. Old value, new value, get % change.
Math Expression Calculator
Evaluate mathematical expressions: 2+3*4, sqrt(16), 2^10. Supports basic operations and common functions.
Simple Interest Calculator
Calculate simple interest. Principal, rate, time. I = P × R × T.
Mean & Median Calculator
Calculate mean (average), median, and mode from a list of numbers. For statistics and data analysis.
Standard Deviation Calculator
Calculate standard deviation and variance. Population and sample formulas. For statistics.
GCD & LCM Calculator
Calculate Greatest Common Divisor and Least Common Multiple of two or more numbers. Euclidean algorithm.
Prime Number Checker
Check if a number is prime. Find prime factors. Useful for cryptography and number theory.
Factorial Calculator
Calculate n! (factorial). Enter a non-negative integer. Used in permutations and combinations.
Number Base Converter
Convert numbers between binary, decimal, octal, and hexadecimal. For developers and programmers.
Quadratic Equation Solver
Solve ax² + bx + c = 0. Find roots, discriminant. Step-by-step solution for quadratic equations.
Roman Numeral Converter
Convert between decimal numbers and Roman numerals (I, V, X, L, C, D, M). For dates and classic notation.
Modulo Calculator
Calculate a mod b (remainder after division). Essential for modular arithmetic and programming.
Fibonacci Sequence Generator
Generate Fibonacci numbers. Enter how many terms. Classic sequence: 0, 1, 1, 2, 3, 5, 8...
Permutation Calculator
Calculate nPr. Number of ways to arrange r items from n. P(n,r) = n!/(n-r)!
Combination Calculator
Calculate nCr. Number of ways to choose r items from n. C(n,r) = n!/(r!(n-r)!)
Frequently Asked Questions
- What are Math Tools tools?
- Math Tools tools are free online utilities that run in your browser. They help developers and content creators work faster—no installation, no account, and your data stays on your device. Use any tool instantly from desktop or mobile.
- Are Math Tools tools free?
- Yes. All Math Tools tools on everytools are completely free. No signup, no subscription, no limits. Use them as often as you need.
- How do I use Math Tools tools?
- Open any tool on this page, paste or enter your input in the field, and view the result. Most tools update in real time. Click Copy to copy output to your clipboard. All processing happens in your browser—your data never leaves your device.
- Do I need to install anything for Math Tools tools?
- No. All Math Tools tools run in your web browser. No downloads, no plugins, no installation. Works on desktop and mobile.