Temperature converter
Convert Celsius, Fahrenheit and Kelvin by editing any one field. Values below absolute zero are rejected and stale calculated values are cleared.
Use a decimal point or comma; do not use thousands separators. Arabic digits and ٫ are accepted.
How to use
Enter a value in one field. The other two update automatically: °F = °C × 9/5 + 32 and K = °C + 273.15. Results show up to 10 significant digits; they are calculations, not thermometer measurements.
Questions and answers
Is 100 °C always the boiling point of water?
Boiling depends on pressure and conditions. This tool only converts numerical temperature scales; it does not infer cooking safety, body temperature, altitude or physical conditions. No input is uploaded by the converter.
Checks and limits
Checked: 0 °C = 32 °F = 273.15 K; 100 °C = 212 °F; −40 °C = −40 °F; 0 K = −273.15 °C. Blank, invalid and below-absolute-zero input clears dependent results.
Automated Chromium checks covered working controls, invalid input, reset and mobile layout. This does not certify every browser, physical device or linguistic nuance.
Technical references
Related tools
Maintained by GadgetsFocus. Updated October 2, 2026. Implementation and translations were reviewed with AI assistance; no independent native-speaker review is recorded.