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Fahrenheit to Celsius Converter

Fahrenheit

Celsius

Fahrenheit [°F]	Celsius [°C]	Description
-459.67 °F	-273.15 °C	Absolute zero
-328 °F	-200 °C	Outer space temperature
-148 °F	-100 °C	Dry ice (solid CO₂)
-128.6 °F	-89.2 °C	Lowest natural temperature recorded on Earth
-58 °F	-50 °C	Extreme winter temperature
-40 °F	-40 °C	Equal point (°F = °C)
-4 °F	-20 °C	Common freezer temperature
14 °F	-10 °C	Typical winter temperature
32 °F	0 °C	Freezing point of water
41 °F	5 °C	Typical refrigerator temperature
50 °F	10 °C	Cool day
68 °F	20 °C	Room temperature
86 °F	30 °C	Warm day
98.6 °F	37 °C	Normal human body temperature
104 °F	40 °C	Hot day / Fever
122 °F	50 °C	Extremely hot day
140 °F	60 °C	Hot water damage to skin begins
212 °F	100 °C	Boiling point of water (sea level)
392 °F	200 °C	Baking temperature in oven
932 °F	500 °C	Typical wood fire temperature
1832 °F	1000 °C	Molten lava temperature

Understanding Temperature Scales

Fahrenheit

The Fahrenheit scale was proposed in 1724 by Daniel Gabriel Fahrenheit. In this scale, the freezing point of water is 32 °F, and the boiling point is 212 °F (at standard atmospheric pressure). The Fahrenheit scale is primarily used in the United States and its territories for everyday temperature measurement.

Celsius

The Celsius scale (formerly known as the centigrade scale) was proposed in 1742 by Swedish astronomer Anders Celsius. In this scale, the freezing point of water is 0 °C, and the boiling point is 100 °C (at standard atmospheric pressure). The Celsius scale is used worldwide for most temperature measurements, including scientific, medical, and weather applications.

Conversion Formulas

Fahrenheit to Celsius:

Formula: °C = (°F − 32) × 5/9

Example: Convert 68 °F to Celsius

°C = (68 − 32) × 5/9 = 36 × 5/9 = 20 °C

Celsius to Fahrenheit:

Formula: °F = (°C × 9/5) + 32

Example: Convert 20 °C to Fahrenheit

°F = (20 × 9/5) + 32 = 36 + 32 = 68 °F

Key Temperature Points

Description	Celsius (°C)	Fahrenheit (°F)
Absolute zero	-273.15	-459.67
Freezing point of water	0	32
Room temperature	20-22	68-72
Normal body temperature	37	98.6
Boiling point of water	100	212

Global Usage

The Celsius scale is the primary temperature scale used in most countries worldwide. The Fahrenheit scale is predominantly used in the United States and its territories for everyday temperature measurements, though scientific and medical applications in the US typically use Celsius or Kelvin.

Interestingly, the Kelvin scale (K) is used in scientific contexts globally, particularly in physics and chemistry. It uses the same increments as Celsius but starts at absolute zero (−273.15 °C), the theoretical lowest possible temperature in the universe.