Calculator Suite

Temperature Converter

Convert between Celsius, Fahrenheit, Kelvin and Rankine temperature scales

Temperature Converter
Convert between different temperature units with precision

Unit to convert from

Unit to convert to

Enter the value you want to convert

72 C → F

Click "Convert" for detailed results and analysis

Popular Temperature Converter Conversions

72°F to °C20°C to °F100°C to °F32°F to °C0°C to K300K to °C

Quick Presets

72°F to Celsius100°C to Fahrenheit0°C to Kelvin
Temperature Converter Formulas
Temperature conversions with offset calculations

Base Unit Method

Vtarget=Vinput×FinputFtargetV_{target} = V_{input} \times \frac{F_{input}}{F_{target}}

VtargetV_{target} = Value in target unit

VinputV_{input} = Value in input unit

FinputF_{input} = Conversion factor to base

FtargetF_{target} = Conversion factor from base

Category-Specific Formula

°F=°C×95+32K=°C+273.15°F = °C \times \frac{9}{5} + 32 \quad K = °C + 273.15
Understanding Temperature Converter

Temperature Scales

Celsius based on water (0° freeze, 100° boil). Fahrenheit originally used body temp as 100°. Kelvin is absolute, starting at 0.

Absolute Zero

0 K = -273.15°C = -459.67°F — where molecular motion theoretically stops.

Weather and Climate

Most countries use Celsius. Water freezes at 0°C/32°F, room temp is ~20°C/68°F, body temp is 37°C/98.6°F.

Scientific Use

Kelvin is used in physics/chemistry. Rankine is the absolute Fahrenheit scale.

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Curated video guide
Selected YouTube lessons that add context after the calculator, formulas, examples, assumptions, and limitations.

Converting Fahrenheit to Celsius

Source: Khan Academy on YouTube

Why this video: Selected because it walks through the offset formula needed for temperature conversions.

What it adds: It supplements the calculator by showing why Celsius and Fahrenheit need addition and subtraction, not only multiplication.

Use with this calculator: Use the converter for fast results, then use the video to understand the formula behind Fahrenheit-to-Celsius changes.

Limits: The video covers common scale conversion and does not address calibration, uncertainty, Rankine, or specialized thermodynamics.

TL;DR — Temperature Conversion Formulas

°F = (°C × 9/5) + 32 and °C = (°F - 32) × 5/9. Key points: 0°C = 32°F (freezing), 100°C = 212°F (boiling),-40° is the same in both scales! Kelvin = Celsius + 273.15.

How to Use This Calculator
1

Select Scales

Choose "From" (e.g., Fahrenheit) and "To" (e.g., Celsius).

2

Enter Temperature

Type the temperature value.

3

View Result

Get the converted temperature instantly.

🌡️ Example: Body Temperature

98.6°F = 37°C = 310.15 K (normal body temp)

⚠️ Assumptions & Limitations

Assumes:

  • • Standard ITS-90 temperature scale
  • • Exact mathematical conversion
  • • No pressure effects

Does NOT include:

  • • Thermal expansion corrections
  • • Altitude/pressure adjustments
  • • Heat index or wind chill
Frequently Asked Questions

Formula for C to F?

°F = (°C × 9/5) + 32. For reverse: °C = (°F - 32) × 5/9.

What is absolute zero?

0 K = -273.15°C = -459.67°F. Theoretical lowest temperature where particles have no motion.

At what temperature are C and F equal?

-40° is the same in both scales! -40°C = -40°F.

What is normal body temperature?

37°C = 98.6°F. A fever is typically above 38°C (100.4°F).

Why does Kelvin have no degree symbol?

Kelvin is an absolute scale, not relative. We write 300 K, not 300°K.