Free Online Tools

Calculators, converters, and utilities — fast and free.

🧮 Conversion

Binary to Text Convert binary code to readable text and back. NATO Alphabet Translate text to the NATO phonetic alphabet.

💲 Financial

Mortgage Calculator Calculate monthly payments, total interest, and amortization. Balance Transfer Compare balance transfer offers and calculate savings.

⚡ Utilities

Electricity Cost Calculate how much your appliances cost to run per month and year.

🩺 Health

BMI Calculator Calculate your Body Mass Index in imperial or metric units.