Temperature can be measured using different scales, each applied in specific areas of science, industry, and everyday life. The four most well-known temperature scales are:

• Celsius (°C)
• Fahrenheit (°F)
• Kelvin (K)
• Rankine (°R or °Ra)

Below, you will learn what each scale is used for and how to convert between them in a simple way.

1. Celsius Scale (°C)

This is the scale used in most parts of the world. It is based on the freezing point of water (0 °C) and its boiling point (100 °C) at sea level.

2. Fahrenheit Scale (°F)

Widely used in the United States. On this scale:

• Water freezes at 32 °F
• Water boils at 212 °F

3. Kelvin Scale (K)

This is the official scientific temperature scale. It starts at absolute zero (0 K), the lowest possible temperature.

The Kelvin scale does not use the degree symbol (°).

Important relation:
0 °C = 273.15 K

4. Rankine Scale (°R or °Ra)

Primarily used in engineering in the United States.

It is similar to the Kelvin scale but uses degree increments equivalent to Fahrenheit.

Important relation:
0 °R corresponds to absolute zero (0 K).

CONVERSION FORMULAS BETWEEN SCALES

°C → °F:
°F = °C × 1.8 + 32

°F → °C:
°C = (°F − 32) × 0.5556

°C → K:
K = °C + 273.15

K → °C:
°C = K − 273.15

°F → °R:
°R = °F + 459.67

°R → °F:
°F = °R − 459.67

K → °R:
°R = K × 1.8

°R → K:
K = °R × 0.5556

°C → °R:
°R = (°C + 273.15) × 1.8

°R → °C:
°C = (°R × 0.5556) − 273.15

°F → K:
K = (°F − 32) × 0.5556 + 273.15

K → °F:
°F = (K − 273.15) × 1.8 + 32

Need to Heat a Thermal Press? Buy Heating Blankets from Paulista Heaters!

Perfect for Thermal Press Heating. Learn More…

O post Temperature Conversion Guide apareceu primeiro em Paulista Heaters.