100 degrees Celsius to degrees Fahrenheit
100 degrees Celsius = 212 degrees Fahrenheit
Formula: degrees Fahrenheit = (degrees Celsius x 9/5) + 32
One hundred degrees Celsius is the boiling point of water at sea level, and converting it to Fahrenheit gives US cooks the temperature they recognize on a kitchen thermometer.
How to Convert degrees Celsius to degrees Fahrenheit
Celsius and Fahrenheit are related by an affine formula, not a simple multiplication, because their zero points differ. Fahrenheit equals Celsius multiplied by 9/5 and then increased by 32. The two scales read the same only at minus forty degrees.
The formula is degrees Fahrenheit = (degrees Celsius x 9/5) + 32. Apply the formula to 100 degrees Celsius: 100 x 9/5 = 180, then 180 + 32 = 212 degrees Fahrenheit.
The reverse is just as direct: 212 degrees Fahrenheit equals 100 degrees Celsius. That symmetry is a quick way to sanity-check any conversion you make.
degrees Celsius to degrees Fahrenheit Conversion Table
Use this table to read off nearby values at a glance. The highlighted row is the 100-degrees Celsius conversion from this page.
| degrees Celsius | degrees Fahrenheit |
|---|---|
| 0 | 32 |
| 10 | 50 |
| 20 | 68 |
| 30 | 86 |
| 40 | 104 |
| 50 | 122 |
| 60 | 140 |
| 70 | 158 |
| 80 | 176 |
| 90 | 194 |
| 100 | 212 |
Reverse: degrees Fahrenheit to degrees Celsius
Need to go the other way? 212 degrees Fahrenheit converts back to 100 degrees Celsius. For the full breakdown in that direction, see 100 degrees Fahrenheit to degrees Celsius.
Frequently Asked Questions
What is 100 degrees Celsius in degrees Fahrenheit?
The result is 212 degrees Fahrenheit. To reach it you multiply by 9/5 and add 32; the extra step is needed because Celsius and Fahrenheit do not share a zero point.
Why can't I just multiply to convert temperature?
Temperature scales are affine, not multiplicative: their zero points differ, so every conversion needs a multiplication plus an addition or subtraction. A handy checkpoint is minus forty degrees, the one reading where Celsius and Fahrenheit agree exactly.
What is 212 degrees Fahrenheit back in degrees Celsius?
Run the steps backward and you are back at 100 degrees Celsius. The unit conversion calculator linked below converts temperatures in either direction.
Convert Any Value
Need a different number or unit? Open the Unit Conversion Calculator to convert temperature between any units instantly.
Open the Unit Conversion CalculatorBrowse all unit conversions or open the Unit Conversion Calculator.
Disclaimer: This calculator is for informational and educational purposes only. Results are estimates and may not reflect exact values.
Last updated: June 13, 2026