Temperature Converter
Celsius, Fahrenheit, Kelvin.
Convert Celsius, Fahrenheit, and Kelvin instantly
Enter a value in any one scale and the other two update immediately. Use this tool to move between kitchen recipes, weather forecasts, or physics problems without memorising formulas.
Formulas
- °F = (°C × 9/5) + 32
- °C = (°F - 32) × 5/9
- K = °C + 273.15
Precision
Calculations run in Celsius internally to maintain accuracy. We display a sensible number of decimals, but you can copy the raw value for lab reports or spreadsheets.
Popular conversions
- Oven settings: 350°F = 176.67°C
- Weather: 0°C = 32°F, -40°C = -40°F
- Science: Room temperature 25°C = 298.15 K
When to use Kelvin
Kelvin is common in science and engineering because it starts at absolute zero. Use it for thermodynamics, physics equations, and lab calculations where negative temperatures in Celsius would break formulas.
Related utilities
- Planning cooking times? Pair this with the Date Difference Calculator for scheduling.
- Working on health metrics? Check out the BMI Calculator.
FAQ
Can I convert Rankine or Réaumur? Not yet, but those scales are on the roadmap. For now, convert through Celsius.
Why do decimals sometimes end in repeating numbers? Certain conversions produce repeating decimals. We round for readability, but the underlying value maintains more precision.