Temperature Converter

Temperature Converter

Local Processing

Convert between temperature scales including Celsius, Fahrenheit, Kelvin, and Rankine.

How It Works & Processing Standards

Convert between the units listed below using K as the base unit.

CK = C × 1 + 273.15
FK = F × 0.555556 + 255.372222
RK = R × 0.555556

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Temperature scales have different zero points, so a simple factor is not enough. Offsets are applied exactly, as in °F = °C × 9/5 + 32.

How to Use Temperature Converter

  1. 1
    Enter a valueDecimals and negative numbers (for temperature, say) are accepted.
  2. 2
    Choose unitsPick the unit you have and the unit you want. The swap button reverses the direction.
  3. 3
    Read, copy or shareResults show up to six decimal places. Copy them or create a share link with the same value.

Examples

Body temperature 36.5 °C in °F
Input: 36.5 °C → °F
Result: 97.7
Where both scales meet
Input: −40 °F → °C
Result: -40

Common Use Cases

  • Reading a Fahrenheit forecast in Celsius
  • Converting oven temperatures in recipes
  • Kelvin temperatures for science work

Frequently Asked Questions (FAQ)

What if I enter something below absolute zero?

Temperatures below −273.15 °C do not exist physically, but the formula still converts the number. Check your input.

Do temperature differences convert the same way?

No. A difference is only multiplied by 1.8 without adding 32; a 10 °C rise is an 18 °F rise.

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