Smart calculators for everyday math
44 free tools available
Calculate your Body Mass Index quickly
Calculate percentages quickly and easily
Basic arithmetic calculator with a clean interface.
Advanced scientific calculator with trig, log, and more.
Calculate mean, median, mode, and more statistics.
Simplify ratios and solve for missing values.
Add, subtract, multiply, and divide fractions.
Solve proportions with cross multiplication.
Round numbers to any number of decimal places.
Calculate absolute and percentage difference.
Generate random numbers within a custom range.
Add or remove VAT from any price instantly.
Calculate discounted prices and savings.
Calculate gross margin, markup, and profit.
Calculate gross profit, net profit, and break-even.
Convert salary between hourly, monthly, and annual.
Calculate simple interest: I = P × R × T.
See how your money grows with compound interest.
Calculate monthly payments and total loan cost.
Find the monthly payment for any total amount.
Project how your savings grow over time.
Calculate exact age in years, months, and days.
Calculate the exact difference between two dates.
Add or subtract days, weeks, months from a date.
Count working days between two dates.
Convert between seconds, minutes, hours, and days.
Add or subtract multiple time durations.
Calculate your Basal Metabolic Rate and daily needs.
Calculate daily calorie needs based on your goals.
Find your ideal body weight using multiple formulas.
Convert between mm, cm, m, km, inches, feet, miles.
Convert between kg, lbs, g, oz, stone, and more.
Convert between Celsius, Fahrenheit, and Kelvin.
Convert between m², km², acres, and hectares.
Convert between liters, gallons, cups, ml, and more.
Convert between m/s, km/h, mph, knots, and Mach.
Convert between Pa, bar, psi, atm, and more.
Convert between joules, calories, kWh, BTU, and more.
Convert between bits, bytes, KB, MB, GB, TB.
Solve linear and quadratic equations step by step.
Calculate square roots, cube roots, and nth roots.
Calculate any base raised to any exponent.
Calculate log₁₀, ln, log₂, and custom logarithms.
Calculate sin, cos, tan, and inverse trig functions.