Unit converter
Temperature converter
Convert Celsius, Fahrenheit, Kelvin, and Rankine temperatures.
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1 °C = 33.8 °F
All Temperature units
From 1 °C| Unit | Value |
|---|---|
| Celsius °C | 1 |
| Fahrenheit °F | 33.8 |
| Kelvin K | 274.15 |
| Rankine °R | 493.47 |
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Reference
How temperature conversion works
Temperature scales have different zero points as well as different degree sizes. The converter therefore applies both a scale and an offset instead of using a simple ratio.
Values are converted to celsius first, then from that reference into the requested unit. Keeping a single documented reference reduces inconsistent pair-by-pair constants.
Unit reference
| Unit | Symbol | 1 unit in °C |
|---|---|---|
| Celsius | °C | 1 |
| Fahrenheit | °F | -17.222222222222 |
| Kelvin | K | -272.15 |
| Rankine | °R | -272.594444444444 |
Long-tail directory
Every indexed conversion
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From Celsius (°C)
From Fahrenheit (°F)
From Kelvin (K)
From Rankine (°R)
Primary source
Definitions and standards
Conversion constants and definitions for this category are checked against BIPM SI Brochure: thermodynamic temperature.
See Methods & sources for rounding rules, exact-value handling, and review policy.
Questions
Temperature FAQ
What is the reference unit for temperature conversions?
ConvertWin uses celsius (°C) as the internal reference for this category, then converts to the selected output unit.
How accurate is this temperature converter?
The kelvin-to-Celsius offset and Fahrenheit scale relationship are exact by definition.