Temperature

Celsius to Fahrenheit Converter

Celsius anchors most international weather forecasts and scientific literature. Fahrenheit remains familiar in the United States for daily temperature feel and some oven dials.

Inputs

Enter your values below. Results update when you calculate.

About °C → °F

Celsius anchors most international weather forecasts and scientific literature. Fahrenheit remains familiar in the United States for daily temperature feel and some oven dials.

Convert C to F with a linear formula scaling by 9/5 and offsetting by 32.

This page converts Celsius input to Fahrenheit output only.

How to use this tool

Enter degrees Celsius. Calculate to see Fahrenheit.

Formula & methodology

This celsius to fahrenheit converter applies the standard relationship below. Intermediate values are kept at full precision; only the displayed result is rounded.

F = (C x 9/5) + 32

Worked example

Normal body temperature is 37 °C. Multiply by 9/5: 37 × 1.8 = 66.6. Add 32: 66.6 + 32 = 98.6 °F. In Kelvin the same temperature is 37 + 273.15 = 310.15 K.

Tips for accurate results

  • 0 C is 32 F (water freeze); 100 C is 212 F (water boil at sea level).
  • Body temp ~37 C is ~98.6 F.
  • Use f-to-c for Fahrenheit to Celsius.
  • Fan ovens may need separate adjustment from temperature conversion.

Frequently asked questions

25 C in F?

77 F.

Exact formula?

Standard F = 1.8C + 32.

Free?

Yes.

Kelvin?

Use c-to-k or universal temperature converter.

Further reading

Guides that explain the ideas behind this calculator.

All guides →

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