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Explore 202 calculators and tools across math, finance, statistics, construction, and everyday tasks.
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Calculate exact age in years, months, and days between two dates.
Calculate BMI with unit options, weight category, healthy range, BMI Prime, and Ponderal Index.
Estimate monthly mortgage payments with taxes, insurance, PMI, HOA, and payoff timing.
Estimate vehicle financing with taxes, fees, trade-in equity, and a full amortization breakdown.
Calculate GPA from total grade points and credits.
Calculate course grade percentage and letter grade.
Add or subtract days from a selected date.
Calculate tip amount, total bill, and split-per-person amount.
Plan better bedtimes or wake-up times using estimated sleep cycles.
Estimate maintenance calories from profile and activity level.
Generate strong random passwords with adjustable length and character rules.
Generate random numbers within a custom range with count and decimal controls.