🌡️ Temperature Conversion
Switch between all major temperature scales.
Perfect for science labs, HVAC calculations, and culinary conversions.
25 Celsius (°C) equals
77 Fahrenheit (°F)
Other Units
Celsius (°C)
25
Kelvin (K)
298.15
Rankine (°R)
536.67
How to Use This Calculator
Enter the temperature
Type the value you need to convert from lab notes or forecasts.
Select the scales
Choose the starting and target temperature units (°C, °F, K, °R).
Use the reference grid
Grab the other units for complete reporting or calculations.
Formula
°F = (°C × 9/5) + 32
K = °C + 273.15
°R = (°C + 273.15) × 9/5
°C = (°F − 32) × 5/9
Use the formula breakdown to confirm the calculation logic or perform the conversion manually if needed.
Full Description
Whether you’re balancing chemical reactions, configuring HVAC equipment, or translating recipes, temperature conversions must be precise. This tool covers the common SI and imperial scales.
Kelvin and Rankine provide absolute scales for thermodynamics, which makes them essential in scientific contexts. The calculator keeps those relationships exact so your calculations remain reliable.
For quick reference, you can copy all unit equivalents at once—handy for tables, documentation, or cross-checking sensors.
Frequently Asked Questions
Can I convert negative temperatures?
Yes. The formulas handle negative values correctly, including below-zero Fahrenheit or Celsius.
What is Rankine used for?
Rankine is the Fahrenheit-based absolute temperature scale, useful in certain engineering and thermodynamics contexts.
Does it support Réaumur or Delisle?
Not yet. Add entries to the temperature unit list if you need historical scales.
Why does Kelvin start at absolute zero?
Kelvin measures absolute thermal energy; 0 K represents absolute zero, the theoretical point where molecular motion stops.
Frequently Asked Questions
What does the Temperature Conversion do?
Convert temperature conversion instantly with this free online converter. Useful for conversion tasks. Accurate results in your browser. No signup required. Enter your values above to see results instantly in your browser. This page is part of Try To Calculator's free online calculator collection.
Is the Temperature Conversion free?
Yes. Try To Calculator tools are free to use and do not require an account for this page.
Are my inputs sent to your servers?
No. Calculations run locally in your browser; we do not collect the numbers you type or the results shown.
Is the Temperature Conversion a substitute for professional advice?
This tool is for education and quick estimates. For medical, legal, tax, or financial decisions, confirm results with a qualified professional.
Where can I find related calculators?
Use the category navigation or the related tools section below to browse more Conversion calculators on Try To Calculator.