Convert temperatures between Celsius, Fahrenheit, Kelvin, and Rankine instantly, all scales shown at once. Free online temperature converter for cooking, science, and weather.
Type a temperature on any scale and see the equivalent on all the others at the same time, Celsius, Fahrenheit, Kelvin, and Rankine. A from/to selector with a swap button handles the pair you need most (usually °C ↔ °F), and a reference table lists key points from absolute zero to boiling water.
Calibrating Temperature Converter......
Please wait a moment
Type a value on any scale and the other two update instantly, (°C × 9/5) + 32 for Fahrenheit, + 273.15 for Kelvin. It's built for the moments the formula slips your mind: adapting a European recipe to a US oven, reading a fever in the 'other' unit, or checking a lab value against absolute zero.
Choose Celsius, Fahrenheit, Kelvin, or Rankine as your source in the left selector.
Type the value. Every other scale updates instantly in the results grid.
Use the To selector for a specific target, swap the direction, or click any scale to copy it.
0°C / 32°F is freezing, 100°C / 212°F is boiling, 37°C / 98.6°F is body temperature, and −40° is the single point where both scales read the same. The converter validates against absolute zero (−273.15°C), so physically impossible inputs are caught instead of silently converted.
Formula: (°C × 9/5) + 32 = °F. Examples: 0°C = 32°F (freezing), 100°C = 212°F (boiling), 37°C = 98.6°F (body temperature), 20°C = 68°F (room temperature).
Formula: (°F - 32) × 5/9 = °C. Examples: 32°F = 0°C, 98.6°F = 37°C, 68°F = 20°C, 212°F = 100°C.
37°C = 98.6°F: this is normal human body temperature. A fever is generally considered 38°C (100.4°F) or above.
Kelvin is the scientific temperature scale where 0K = absolute zero (the coldest possible temperature). To convert Celsius to Kelvin, add 273.15. So 0°C = 273.15K, 100°C = 373.15K.
Most cakes bake at 350°F (175°C). For reference: 325°F = 163°C, 375°F = 191°C, 400°F = 204°C, 425°F = 218°C. Use this converter to adapt recipes between US (Fahrenheit) and European (Celsius) measurements.
Celsius and Fahrenheit are equal at -40 degrees: -40°C = -40°F. This is the only temperature where both scales intersect. Below this point, Celsius values are higher than Fahrenheit; above it, Fahrenheit values are higher.
180C is 356F (often rounded to 350F on ovens). Enter any oven temperature to convert between C and F for recipes.
Tool Guides
Tool GuidesOffline POS is a desktop point-of-sale built for real shops — fast catalogue, cash-drawer discipline, customer credit, inventory and reports, all stored locally on your own machine. Optional FBR invoice reporting is built in for Pakistani retail.
Tool GuidesPhotos carry hidden data like GPS location and camera details. Here's why that matters for privacy and how to strip it before sharing.