Baroch tools

Temperature Converter

Convert between Celsius, Fahrenheit, Kelvin, and other temperature scales

Temperature Scale Converter

°C
Celsius
°F
Fahrenheit
K
Kelvin
°R
Rankine
°Ré
Réaumur
0.0
Celsius
°C
32.0
Fahrenheit
°F
273.15
Kelvin
K
491.67
Rankine
°R
0.0
Réaumur
°Ré
0°C

Temperature References

Common Temperatures

  • Absolute Zero -273.15°C / -459.67°F
  • Water Freezes 0°C / 32°F
  • Room Temperature 20°C / 68°F
  • Body Temperature 37°C / 98.6°F
  • Water Boils 100°C / 212°F

Weather Temperatures

  • Extreme Cold -40°C / -40°F
  • Very Cold -20°C / -4°F
  • Cold 0°C / 32°F
  • Warm 25°C / 77°F
  • Very Hot 40°C / 104°F

Cooking Temperatures

  • Refrigerator 4°C / 39°F
  • Warm Oven 160°C / 320°F
  • Moderate Oven 180°C / 356°F
  • Hot Oven 200°C / 392°F
  • Very Hot Oven 230°C / 446°F

How to Use the Temperature Converter

Multiple Scales

Convert between Celsius, Fahrenheit, Kelvin, Rankine, and Réaumur.

Example: 25°C = 77°F = 298.15K

Instant Conversion

Real-time conversion as you type, with precise calculations.

Feature: See all scales simultaneously

Reference Guide

Common temperature references for cooking, weather, and science.

Educational: Learn temperature relationships

Visual Display

Interactive thermometer visualization shows temperature level.

Intuitive: Visual temperature representation

Temperature Conversion Formulas

From Celsius (°C)

  • To Fahrenheit: (°C × 9/5) + 32
  • To Kelvin: °C + 273.15
  • To Rankine: (°C + 273.15) × 9/5
  • To Réaumur: °C × 4/5

From Fahrenheit (°F)

  • To Celsius: (°F - 32) × 5/9
  • To Kelvin: (°F + 459.67) × 5/9
  • To Rankine: °F + 459.67
  • To Réaumur: (°F - 32) × 4/9

Frequently Asked Questions

1. What's the difference between Celsius and Fahrenheit?

Celsius uses water's freezing (0°) and boiling (100°) points. Fahrenheit uses 32° for freezing and 212° for boiling water.

2. When do I use Kelvin instead of Celsius?

Kelvin is used in scientific calculations, especially physics and chemistry. It starts at absolute zero (-273.15°C).

3. What is absolute zero?

Absolute zero is the lowest possible temperature where all molecular motion stops: 0K, -273.15°C, or -459.67°F.

4. Why are some temperatures the same in Celsius and Fahrenheit?

At -40 degrees, Celsius and Fahrenheit scales intersect: -40°C equals -40°F.

5. What is the Rankine scale used for?

Rankine is used in engineering, especially thermodynamics. It's like Kelvin but uses Fahrenheit-sized degrees.

6. Is the Réaumur scale still used today?

Réaumur is rarely used today but was historically important in Europe. It's included for completeness and historical interest.

7. How accurate are the conversions?

Conversions are mathematically precise using standard formulas. Results are displayed to appropriate decimal places.

8. Can I convert negative temperatures?

Yes, the converter handles all temperatures above absolute zero, including negative values in Celsius and Fahrenheit.

9. What's normal body temperature in different scales?

Normal body temperature is 37°C, 98.6°F, 310.15K, 769.67°R, or 29.6°Ré.

10. Which countries use Fahrenheit?

Primarily the United States, Bahamas, Belize, and Cayman Islands. Most other countries use Celsius.