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Calculators for age, BMI, loans, dates, statistics and more.
21 tools
Calculate dimensions from aspect ratios — 16:9, 4:3, 1:1, and more.
Calculate exact age in years, months, days from date of birth.
Calculate monthly loan EMI, total interest, and amortization schedule.
Calculate BMI in metric or imperial with instant health category.
Calculate time differences, durations, conversions, and world clocks.
Compute mean, median, mode, std dev, quartiles and more from a list of numbers.
Find the exact difference between two dates.
Find what day of the week any date falls on.
Live countdown timer to any future date or event.
Calculate GCD and LCM of multiple numbers.
Check if a number is prime and find its factors.
Generate Fibonacci sequences and check Fibonacci numbers.
Compute tips and split bills with a slider — no math required.
5-in-1 percentage calculator: X% of Y, increase/decrease, discount.
Compute future value with compounding and monthly contributions.
Estimate due date from LMP, conception, or ultrasound.
Pace ↔ distance ↔ time for runners and cyclists.
TDEE + macros (protein/carbs/fat) for your goals.
Monthly mortgage payment with tax, insurance, and HOA.
Solve ax² + bx + c = 0 with discriminant, roots, vertex.
Full scientific calculator with trig, log, factorial, history & keyboard input.