Calculators

Calculate Body Mass Index (BMI) with metric or imperial units and see category ranges.

Estimate Basal Metabolic Rate (BMR) and daily energy needs (TDEE) using Mifflin–St Jeor.

Compute monthly payment, total interest, and amortization summary for a loan.

Estimate a rough home price based on income, debts, down payment, and interest rate.

Calculate tip, total, and per-person split quickly.

Find percent change between two values and apply percentage increase/decrease.

Compute simple ROI and estimated annualized return (CAGR).

Calculate exact age in years, months, and days from a birth date.

Compare prices by calculating cost per unit (e.g., per kg, L, or item).