Celsius to Fahrenheit Converter
Convert degrees Celsius to degrees Fahrenheit with the exact conversion factor, a worked example and a quick-reference table. Runs entirely in your browser.
This converter turns degrees Celsius into degrees Fahrenheit instantly using the standard definition of both units. It includes the formula, a worked example, and a quick table for common amounts, and it works for any value you type — including decimals and negatives where they make sense.
Quick reference — degrees Celsius to degrees Fahrenheit
How to use this calculator
- Enter the value in degrees Celsius in the input box.
- Read the result in degrees Fahrenheit — it updates as you type.
- Use the Swap button to convert in the opposite direction.
- Check the quick-reference table for common degrees Celsius amounts.
The formula
°F = °C × 9/5 + 32
Worked example
100 °C = 212 °F — in full, 100 degrees Celsius converts to 212 degrees Fahrenheit. Weather forecasts, oven settings and science work are the everyday jobs for this conversion.
Frequently Asked Questions
How do I convert degrees Celsius to degrees Fahrenheit?
Use the formula °F = °C × 9/5 + 32. For example, 100 °C becomes 212 °F. The converter above applies the same formula instantly for any value you type.
What are the reference points in Celsius and Fahrenheit?
At standard pressure, water freezes at 0 °C and boils at 100 °C. In degrees Fahrenheit those same points are 32 °F and 212 °F. Normal body temperature, 37 °C, reads 98.6 °F.
What is 100 degrees Celsius in degrees Fahrenheit?
100 degrees Celsius is 212 degrees Fahrenheit, using the formula °F = °C × 9/5 + 32. The converter above applies it instantly for any value, including negative temperatures.
Why does converting degrees Celsius to degrees Fahrenheit need addition or subtraction?
Temperature scales do not share the same zero point, so a simple ratio is not enough — each formula combines the 9/5 (or 5/9) degree-size ratio with an offset. Kelvin is the exception that proves the rule: it starts at absolute zero (−273.15 °C), so Celsius-to-Kelvin only shifts by 273.15.