United States tools

Tools and calculators built for United States.

Local to United States

Add or remove sales tax using the combined state and local rate you enter.

Calculate percentages, percentage change and reverse percentages instantly.

Find your exact age in years, months and days, and the days until your next birthday.

See how savings or investments grow with compound interest and regular contributions.

Work out monthly payments, total interest and the full amortisation schedule for any loan.

Convert length, weight, temperature, volume, area, speed and more between metric and imperial units.

Count words, characters, sentences and paragraphs, and estimate reading time.

Create strong random passwords locally in your browser. Nothing is sent or stored.

Turn any link or text into a QR code and download it as PNG or SVG.