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Celsius to Fahrenheit Converter

Convert celsius to fahrenheit using the formula °F = °C × 9/5 + 32. The calculator below shows higher precision results. The reference table is rounded for readability.

°C
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33.8 °F
°F = °C × 9/5 + 32
°C to °F formula and worked examples

Formula and Step-by-Step

°F = °C × 9/5 + 32

Step-by-step: 1 °C to °F

  1. Start with 1°C
  2. Multiply by 9/5: 1 × 1.8 = 1.8
  3. Add 32: 1.8 + 32 = 33.8
  4. Result: 1°C = 33.8°F

Conversion Table

Common celsius to fahrenheit values. The table and calculator both use the same conversion formula shown above.

What Does That Feel Like?

  • 0 °C = 32 °F, water freezes
  • 20 °C = 68 °F, comfortable room temperature
  • 37 °C = 98.6 °F, normal body temperature
  • 100 °C = 212 °F, water boils
  • 180 °C = 356 °F, typical oven temperature

Quick Mental Conversion

For a rough estimate, double the Celsius value and add 30. For example, 20 °C: double is 40, plus 30 gives 70. The exact answer is 68 °F.

What Are Celsius and Fahrenheit?

What is a Celsius?

Celsius is a temperature scale where 0 degrees is the freezing point of water and 100 degrees is the boiling point. It is used by most countries worldwide.

What is a Fahrenheit?

Fahrenheit is a temperature scale where 32 degrees is the freezing point of water and 212 degrees is the boiling point. It is primarily used in the United States.

Why convert celsius to fahrenheit?

People typically convert celsius to fahrenheit when checking weather in the US, following American recipes, and setting oven temperatures.

Frequently Asked Questions

1 celsius equals 33.8 fahrenheit. This uses the formula: °F = °C × 9/5 + 32.
The formula is: °F = °C × 9/5 + 32. See the °C to °F formula page for step-by-step worked examples.
Use the fahrenheit to celsius converter. 1 °F = -17.22 °C.
Most unit conversions use simple multiplication because the scales share a zero point. Temperature scales have different zero points (0 degrees C = 32 degrees F), so the formulas require both multiplication and addition or subtraction.
For Celsius to Fahrenheit, double the value and add 30. For Fahrenheit to Celsius, subtract 30 and halve. These give close approximations for everyday use.