Math & Calculators
48 tools available. All free, all private.
From scientific calculations to loan amortization, BMI to compound interest — our calculators cover everyday math, finance, health, and science. All calculations happen instantly in your browser with full precision.
When to Use Math & Calculators
- Calculating loan payments and amortization schedules
- Converting between units (length, weight, temperature, etc.)
- Computing BMI, ideal weight, and health metrics
- Scientific calculations with trig, log, and powers
- Percentage, discount, and tip calculations
Popular Math & Calculators
Age Calculator
Calculate exact age with zodiac and milestones
Unit Converter
Convert units across 12 categories instantly
Percentage Calculator
Calculate percentages, tips, discounts, and tax
Scientific Calculator
Scientific calculator with trig, log, and powers
Discount Calculator
Calculate discounts, stacked savings, and tax
Tip Calculator
Calculate tips with bill splitting and round-up
Compound Interest Calculator
Calculate compound interest with charts and goals
Roman Numeral Converter
Convert between decimal and Roman numerals — bidirectional
Binary Calculator
Binary arithmetic — add, subtract, multiply
Fuel Cost Calculator
Calculate fuel cost for any trip — metric or imperial
GPA Calculator
Calculate your cumulative GPA — add courses and grades
Calorie Calculator TDEE
Calculate your daily calorie needs — BMR & TDEE
Ideal Weight Calculator
Calculate ideal weight using multiple medical formulas
Speed Distance Time
Calculate speed, distance, or time from any two
Prime Number Checker
Check primes, find factorization, and list primes up to N
Factorial Calculator
Calculate factorials with step-by-step display
Fibonacci Generator
Generate Fibonacci sequences and golden ratio
Matrix Calculator
Matrix operations — add, multiply, determinant
Circle Calculator
Calculate all circle properties
Combination & Permutation Calculator
Calculate combinations and permutations
Fraction to Decimal Converter
Convert between fractions and decimals
LCM & GCD Calculator
Find LCM and GCD of numbers
Long Division Calculator
Long division with full steps
Prime Factorization Calculator
Find prime factors of any number
Probability Calculator
Calculate probability of events
Quadratic Equation Solver
Solve quadratic equations with steps
Standard Deviation Calculator
Calculate standard deviation and variance
Statistics Calculator
Complete descriptive statistics
System of Equations Solver
Solve systems of linear equations
Triangle Calculator
Calculate all triangle properties
Vector Calculator
Vector math operations
Area Calculator
Calculate area for any shape
Number Base Converter
Convert between number bases
Complex Number Calculator
Calculate with complex numbers
Derivative Calculator
Calculate derivatives with steps
Exponent Calculator
Calculate powers and roots
Function Graph Plotter
Plot mathematical functions
Integral Approximator
Approximate definite integrals
Logarithm Calculator
Calculate logarithms with any base
Modulo Calculator
Calculate modulo (remainder)
Number Sequence Generator
Generate number sequences
Percentage Change Calculator
Calculate percentage increase or decrease
Proportion Solver
Solve proportions (a/b = c/d)
Ratio Calculator
Simplify and scale ratios
Volume Calculator
Calculate volume for any 3D shape