Celsius to Rankine Converter

Conversion Updated 15 Jun 2026

This Celsius to Rankine Converter lets you convert Celsius (C) into Rankine (R) in one step. Enter a value in celsius and you'll instantly see the equivalent in rankine, worked out with the formula R = (C + 273.15) x 9/5. It's handy whenever you need a quick, precise celsius-to-rankine conversion without doing the arithmetic by hand.

  • Conversion constants are fixed and do not vary by region.

Formula

R = (C + 273.15) x 9/5
  • This conversion uses the formula R = (C + 273.15) x 9/5, which includes an offset — it is not a single multiply-by factor.
  • Apply the whole formula (scaling and the constant term) to each value you convert.
  • Displayed results are rounded for readability, but the full-precision value is used in the calculation.

Example

Inputs
  • Celsius (C): 20

Apply R = (C + 273.15) x 9/5: 20 C converts to 527.67 R.

Frequently asked questions

How do I convert celsius to rankine?
Apply the formula R = (C + 273.15) x 9/5. For example, 20 C equals 527.67 R.
Is this conversion accurate?
Yes. The calculator uses the exact, internationally accepted relationship between the two units.
Why can tiny differences appear after conversion?
Very small differences are only a display effect from rounding the output. The underlying calculation keeps full precision.