Celsius to Fahrenheit Converter
Convert Celsius to Fahrenheit instantly with formula and worked examples.
Ready to calculate?
› Open the Unit ConverterBackground
Convert celsius (°C) to fahrenheit (°F) instantly. This is one of the most commonly needed conversions in the temperature category, required in engineering, science, and everyday life across different measurement systems.
Understanding °C and °F
Celsius and fahrenheit are both units of temperature. °C is part of the metric system, while °F belongs to the imperial system. The exact conversion factor is 0 ( in reverse).
When You Need This Conversion
This conversion is needed when working with international specifications, reading imperial measurements in a metric country, or using equipment calibrated in different units.
How to Use This Calculator
- Open the Unit Converter
Navigate to the converter and select '{cat.title()}' from the category dropdown.
- Select °C as source
Choose celsius as your starting unit.
- Enter your value in °C
Type the number you want to convert.
- Select °F as target
Choose fahrenheit to see the result instantly.
- Read the result
The converted value appears immediately with full precision.
Applications
Travel
30°C = 86°F. Packing for a trip? Know the temperature in your system.
Oven Temperatures
180°C = 356°F. Convert Australian recipes for US ovens.
Healthcare
38°C fever = 100.4°F. Some medical devices display both scales.
Frequently Asked Questions
How do you convert °C to °F?
Multiply by 9/5 then add 32. 25°C × 9/5 + 32 = 77°F.
What is 100°C in °F?
100 × 9/5 + 32 = 212°F (boiling point of water).
Quick estimation method?
Double and add 30. 20°C → 40+30 = 70°F (actual 68°F). Close enough for weather.