All Temperature Conversions
Browse all 12 temperature conversion tools organized by unit type
Instant Conversion
Get accurate results immediately
Multiple Scales
Celsius, Fahrenheit, Kelvin, Rankine
Precise Results
High precision calculations
How to Convert Temperature Units Online
Step-by-Step Instructions:
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1
Enter Temperature Value: Type the temperature value you want to convert in the input field.
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2
Select Source Scale: Choose the source temperature scale from Celsius, Fahrenheit, Kelvin, or Rankine.
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3
Select Target Scale: Choose the target temperature scale from the dropdown menu.
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Get Conversion Result: Click "Convert" to get instant accurate conversion results.
Key Temperature Points:
- Water freezes: 0°C = 32°F = 273.15 K
- Water boils: 100°C = 212°F = 373.15 K
- Absolute zero: -273.15°C = -459.67°F = 0 K
- Body temperature: 37°C = 98.6°F = 310.15 K
- Room temperature: 20°C = 68°F = 293.15 K
Understanding Temperature Scales
Celsius (°C)
Used: Worldwide standard, metric system
Zero point: Water freezing point
Scale: 0°C (freezing) to 100°C (boiling)
Fahrenheit (°F)
Used: United States, some Caribbean countries
Zero point: Brine freezing point
Scale: 32°F (freezing) to 212°F (boiling)
Kelvin (K)
Used: Scientific research, physics, chemistry
Zero point: Absolute zero (-273.15°C)
Scale: 273.15 K (freezing) to 373.15 K (boiling)
Rankine (°R)
Used: Engineering applications in US
Zero point: Absolute zero
Scale: 491.67°R (freezing) to 671.67°R (boiling)
When to Use Temperature Conversion
Cooking & Baking
Convert oven temperatures between Celsius and Fahrenheit for international recipes.
Travel & Weather
Understand weather forecasts when traveling between countries using different scales.
Science & Research
Convert between Kelvin and Celsius for scientific experiments and calculations.
Health & Medicine
Convert body temperature readings between different measurement systems.
Engineering
Work with temperature specifications in manufacturing and industrial processes.
Education
Learn and practice temperature conversions for science and math studies.
Frequently Asked Questions
How do I convert Rankine to Celsius?
To convert Rankine to Celsius, subtract 491.67 from the Rankine temperature and multiply by 5/9. Formula: °C = (°R - 491.67) × 5/9. For example, 527.67°R equals 20°C. Use our converter for instant accurate results.
What is the conversion formula?
The formula is: °C = (°R - 491.67) × 5/9. For example: 527.67°R = 20°C. Our converter performs this calculation instantly with high precision.
When would I use this conversion?
Common use cases include:
- Converting engineering data to Celsius scale
- International engineering collaboration
- Converting US engineering temperatures to metric
- Scientific research requiring Celsius scale
What is the freezing point of water in different scales?
Water freezes at 0°C (Celsius), 32°F (Fahrenheit), 273.15 K (Kelvin), and 491.67°R (Rankine) under standard atmospheric pressure at sea level.
What is absolute zero in different temperature scales?
Absolute zero is the lowest possible temperature where molecular motion stops. It equals -273.15°C (Celsius), -459.67°F (Fahrenheit), 0 K (Kelvin), and 0°R (Rankine).
Is this temperature converter free?
Yes, completely free with no registration or limits. Convert unlimited temperature measurements between any supported scales anytime.
Temperature Conversion Formulas
From Celsius:
- °F = (°C × 9/5) + 32
- K = °C + 273.15
- °R = (°C × 9/5) + 491.67
From Fahrenheit:
- °C = (°F - 32) × 5/9
- K = (°F - 32) × 5/9 + 273.15
- °R = °F + 459.67