🧮 Calculators
Free online calculators for health, finance and dates. Work out your BMI, percentages, loan payments, exact age or the number of days between two dates — with the formulas explained, not just the answer.
BMI Calculator
Body Mass Index (BMI) estimates body fat using your weight relative to your height.
Percentage Calculator
Three percentage questions cover almost any everyday need: “What is 15% of 80?”, “46 is what percent of 250?” and “What is the…
Age Calculator
This age calculator converts a date of birth into an exact age — not just whole years, but the precise years, months and days…
Loan Calculator
This calculator works out the fixed monthly payment for an amortizing loan — a mortgage, car loan or personal loan where each…
Date Difference Calculator
This calculator measures the exact span between two calendar dates.