Celsius to Fahrenheit Converter

Convert Celsius to Fahrenheit and Fahrenheit to Celsius instantly. Also supports Kelvin. Exact formulas, no rounding surprises, runs in your browser.

Color Converter

Convert colors between HEX, RGB and HSL instantly. Paste a value and get every format — in your browser.

Kg to Lbs Converter

Convert kilograms to pounds and pounds to kilograms. Uses the exact conversion (1 lb = 0.45359237 kg). Perfect for fitness tracking, recipes and international shipping.

Km to Miles Converter

Convert kilometers to miles and miles to kilometers instantly. Uses the exact conversion factor (1 mile = 1.609344 km). Runs in your browser.

Meters to Feet Converter

Convert meters to feet and feet to meters. Uses the exact value (1 m = 3.280839895 ft). Runs in your browser — no data sent.

Number Base Converter

Convert integers between decimal, binary, octal and hexadecimal. Instant, private, in your browser.

Unit Converter

Convert temperature, length and weight between common units. Instant and private, in your browser.