Convert meters, feet, inches, kilometers, and miles.

Convert between m/s, km/h, mph, ft/s, and knots.

Convert between m/s, km/h, mph, knots and Beaufort scale.

Convert between °C, °F, K and °R (Rankine).

Convert between ms, s, min, hours, days, and weeks.

Convert between kg, g, mg, lb, oz, stone, and metric tonnes.

Calculate your age as of today or a specific date (years, months, days).

Find the difference between two dates in years, months, and days.

Enter a tax rate and either a net amount or a final price to compute the rest.

Calculate your Body Mass Index instantly.

Generate a random integer between a minimum and maximum (inclusive).