Common Reference Points:

Water freezes

0°C = 32°F = 273.15K

Room temp

20°C = 68°F = 293.15K

Water boils

100°C = 212°F = 373.15K

Temperature Converter Notes

  • Conversion Formulas

    °C to °F: (°C × 9/5) + 32

    °F to °C: (°F - 32) × 5/9

    °C to K: °C + 273.15

    K to °C: K - 273.15

  • Temperature Scales

    • Celsius: Used in UK, Europe, most of world. Based on water's freezing (0°C) and boiling (100°C) points.
    • Fahrenheit: Used in USA. Water freezes at 32°F and boils at 212°F.
    • Kelvin: Scientific scale. 0K is absolute zero (-273.15°C).