Convert between major world currencies using real-time exchange rate logic. Covers USD, EU

Convert between kilograms, pounds, ounces, grams, stones and more weight units instantly.

A fully functional scientific calculator with trigonometric, logarithmic, and advanced mat

Estimate kidney function (GFR) using the Cockcroft-Gault equation from age, weight, and se

Calculate the perimeter of common shapes: square, rectangle, triangle, circle, and more.

Calculate log base 10, natural log (ln), log base 2, and any custom base logarithm.