From Celsius
Celsius to Fahrenheit
F = (C × 9/5) + 32
Convert °C to °F — the most-searched temperature conversion.
°C → °F →Celsius to Kelvin
K = C + 273.15
Convert °C to K — same-sized degree, absolute-zero anchor.
°C → K →Celsius to Rankine
R = (C + 273.15) × 9/5
Convert °C to °R — absolute scale using Fahrenheit-sized degrees.
°C → °R →Three focused converters for translating Celsius to each of the other three standard temperature scales. Each is a one-direction converter with the formula visible, the substituted arithmetic shown step-by-step, and a static reference table for the temperatures most readers actually look up.
Use a focused converter when you're translating in one specific direction repeatedly (e.g., reading European recipes in °C and needing °F for a U.S. oven). For one-off conversions or when you want all scales at once, use the multi-scale converter on the home page.
When to use these converters
Celsius is the metric scale used globally for weather, cooking, lab work, and medicine outside the United States. Translating to Fahrenheit is the most common direction (U.S. recipes, weather apps); to Kelvin is needed for thermodynamics and gas-law problems; to Rankine is rare but comes up in some U.S. engineering disciplines.
Frequently Asked Questions
- What's the formula for Celsius to Fahrenheit?
- F = (C × 9/5) + 32. Multiply by 9/5 to scale up to Fahrenheit-sized degrees, then add 32 to align the zero points.
- What's the formula for Celsius to Kelvin?
- K = C + 273.15. Kelvin and Celsius use the same-sized degree; only the zero point differs (Kelvin's 0 is absolute zero; Celsius's 0 is water's freezing point).
- What's the formula for Celsius to Rankine?
- R = (C + 273.15) × 9/5. Convert to Kelvin first (same-sized degree, different zero), then scale to Fahrenheit-sized degree. Equivalently: R = (C × 9/5) + 491.67.