Convert Celsius to Rankine

Convert Celsius (°C) to Rankine (°R) instantly and accurately.

Conversion Formula

°R = (°C + 273.15) × 9/5

About Celsius

Celsius (°C) is the most widely used temperature scale worldwide, named after Swedish astronomer Anders Celsius (1742). It's based on the freezing point of water at 0°C and boiling point at 100°C under standard atmospheric pressure (1 atmosphere). This makes it intuitive for daily use: room temperature is around 20-22°C, body temperature is 37°C, and a hot summer day might reach 35-40°C. It's the standard in science, medicine, and weather reporting in most countries.

About Rankine

Rankine (°R) is an absolute temperature scale named after Scottish engineer William John Macquorn Rankine. Like Kelvin, it starts at absolute zero (0°R = -459.67°F = 0 K), but uses Fahrenheit-sized degree intervals instead of Celsius-sized ones. It's primarily used in engineering applications in the United States, particularly in thermodynamics and steam power calculations. For reference: water freezes at 491.67°R, room temperature is about 530°R, and water boils at 671.67°R. The relationship is simple: °R = °F + 459.67.

Quick Reference Table

→ Full Temperature Converter