Thermal Engine

Enter a temperature to see instant results.

🌡️ Temperature Value

From Unit

To Unit

🎯 Decimals

CONVERTED RESULT

32.00

°F

Formula Used:

(0°C × 9/5) + 32 = 32°F

Water Freezes 0°C / 32°F

🔥

Water Boils 100°C / 212°F

🧍

Body Temp 37°C / 98.6°F

Temperature Conversion Formulas

Unlike weight or length which start at zero, temperature scales have different starting points (offsets). This makes the math slightly more complex.

🇺🇸

Celsius to Fahrenheit

(°C × 9/5) + 32

🌍

Fahrenheit to Celsius

(°F − 32) × 5/9

🧪

Celsius to Kelvin

°C + 273.15

Understanding the Scales

🔵 Celsius (°C)

Metric Standard

Based on water: 0° is freezing, 100° is boiling.
Used by almost every country worldwide.
Also known as "Centigrade".

🔴 Fahrenheit (°F)

US Standard

Based on brine mixture and human body temp.
Water freezes at 32°, boils at 212°.
Used primarily in the USA, Bahamas, and Belize.

🟣 Kelvin (K)

Scientific

Starts at Absolute Zero (-273.15°C).
No negative numbers possible.
Standard unit for Thermodynamics and Physics.

Common Temperature Benchmarks

Condition	Celsius (°C)	Fahrenheit (°F)
Absolute Zero	-273.15°C	-459.67°F
Freezing Water	0°C	32°F
Room Temperature	20-22°C	68-72°F
Body Temperature	37°C	98.6°F
Boiling Water	100°C	212°F
Oven Baking	180°C	350°F

Frequently Asked Questions

What is the formula to convert C to F?

Multiply the Celsius temperature by 1.8 (or 9/5) and add 32. For example: (20°C × 1.8) + 32 = 68°F.

Why does the USA use Fahrenheit?

The US kept the British Imperial system when other nations industrialized. Fahrenheit offers a more precise scale for air temperature (0-100 is "very cold" to "very hot") without needing decimals.

What is -40 degrees?

Interestingly, -40° is the unique point where the Celsius and Fahrenheit scales intersect. So -40°C is exactly equal to -40°F.

How do I convert Kelvin to Celsius?

Simply subtract 273.15. If it is 300K, the Celsius temperature is 300 - 273.15 = 26.85°C.

Why doesn't Kelvin use the degree symbol?

Kelvin is an absolute scale, not a relative one. We say "300 Kelvin", not "300 degrees Kelvin". It measures the actual thermal energy present.

What is Absolute Zero?

Absolute Zero (0 K or -273.15°C) is the theoretical lowest temperature possible, where all molecular motion ceases.

Is 100°F twice as hot as 50°F?

No. Temperature scales have arbitrary zero points. To calculate "twice as hot," you must convert to Kelvin first (absolute energy).

What temperature should I bake at?

Standard baking temperature is 180°C (Fan) or 350°F. Always check if your recipe specifies Fan/Convection, as you might need to adjust by 20°C.

Is a 1 degree change the same in C and F?

No. A change of 1 degree Celsius is equal to a change of 1.8 degrees Fahrenheit. Celsius degrees are "larger".

Can temperature be negative in Kelvin?

No. Since 0 K is the absolute absence of thermal energy, you cannot go below it in the standard thermodynamic model.

Calculators

Converters

Text Tools

Image Tools

Loan & EMI

Investment

Tax & Business

Health & Math

Length

Weight & Volume

Temperature & Time

Files & Data

Counters

Case & Format

AI & Generators

Edit & Compare

Compress

Convert

Edit

Utilities

SEO Analysis

Technical SEO

Web Performance

Dev Tools

Temperature Converter