What units does the Data category cover?

Bytes, Kilobytes, Megabytes, Gigabytes, Terabytes, and Petabytes, using binary (1024-based) conversion factors.

Does it support imperial and metric?

Yes. Length covers mm, cm, m, km, in, ft, yd, mi. Weight covers g, kg, oz, lb. Temperature: C, F, K.

No. All conversion math runs locally in your browser — nothing is uploaded.

Not yet. Standard SI and imperial units are supported.

Yes. After first load, every category works fully offline — there's no external API call for any conversion.

Yes. Volume category covers cups, tablespoons, teaspoons, milliliters, fluid ounces, etc.

What units does the Data category cover?: Bytes, Kilobytes, Megabytes, Gigabytes, Terabytes, and Petabytes, using binary (1024-based) conversion factors.
Does it support imperial and metric?: Yes. Length covers mm, cm, m, km, in, ft, yd, mi. Weight covers g, kg, oz, lb. Temperature: C, F, K.
Is my data stored or sent anywhere?: No. All conversion math runs locally in your browser — nothing is uploaded.
Can I add custom units?: Not yet. Standard SI and imperial units are supported.
Does it work offline?: Yes. After first load, every category works fully offline — there's no external API call for any conversion.
Does it support cooking units?: Yes. Volume category covers cups, tablespoons, teaspoons, milliliters, fluid ounces, etc.

Pick a category. Choose Length, Weight, Temperature, Area, Volume, Speed, Data, or Time.
Enter a value. Type any number. Negative and decimal values are supported.
Pick source and target units. Select what you have (meters, pounds, Fahrenheit, etc.) and what you want.
Read the result. See the conversion live along with the exact formula used. Switch source ↔ target with one click.

More free, in-browser tools from the Documents & Utility set — every one runs locally, with no sign-up and no upload.