tempturn

Temperature Converter

One temperature, every scale.

Type any number and watch it convert across Celsius, Fahrenheit, Kelvin and more — then add wind chill or heat index for the temperature that actually counts.

°C × 9/5 + 32 = °F
Celsius20.00°
Fahrenheit68.00°
Kelvin293.15 K
Rankine527.67 °R
Réaumur16.00 °Ré
Reverse with wind or humidity to see the apparent temperature.

Common temperature references

What°C°FK
Deep freeze (fridge)-180255
Water freezes032273
Comfortable room2170294
Human body3798.6310
Oven — 350°F177350450
Oven — 425°F218425491
Water boils100212373

Converting across three scales without doing the math

Temperature conversion looks simple until you are juggling Celsius, Fahrenheit, and Kelvin in the same workflow. A recipe calls for 180°C while your oven reads in Fahrenheit. A lab notebook logs Kelvin while a datasheet lists Celsius. Weather forecasts, HVAC settings, and scientific papers each favor a different scale. This tool lets you enter a value in any one of the three units and instantly see the equivalent readings in the other two, so you can move between everyday and scientific contexts without memorizing conversion formulas or risking arithmetic mistakes.

Pick a scale, enter a value, read all three

  1. Choose the input temperature scale you are starting from.
  2. Type the numeric value you need to convert into the input field.
  3. Check the output fields for the two remaining temperature units.
  4. Copy the converted value you need for your recipe, report, or calculation.
  5. Clear the input and repeat for any additional temperatures to convert.

Frequently Asked Questions

How do I convert Celsius to Fahrenheit?

Multiply by 9, divide by 5, then add 32. So 20°C becomes (20 × 9 ÷ 5) + 32 = 68°F.

How do I convert Fahrenheit to Celsius?

Subtract 32, multiply by 5, then divide by 9. So 68°F becomes (68 − 32) × 5 ÷ 9 = 20°C.

What is the Kelvin scale used for?

Kelvin is the SI base unit of temperature and starts at absolute zero. 0°C equals 273.15 K.

Does it include cooking temperatures?

Yes. Common oven and cooking equivalents are listed next to the converted values for quick reference.

Latest Articles

Differences between European fan-assisted ovens and American convection ovens for recipe temperature conversion
Here's the scene: You found a gorgeous Victoria sponge recipe from a British baking blog. The instructions say "180°C, fan oven."
Adjusting bake times when crossing over from European fan-assisted ovens to American conventional baking temperatures
Here's the shortcut that will save your first transatlantic bake: when a European recipe says "180°C fan," set your American conventional oven to 350°F and add roughly 20% more time.
Using the wind chill and heat index scales to calculate the actual 'feels like' temperature in both Celsius and Fahrenheit
You step outside at 5 a.m. The weather app says 35°F. Yesterday at 35°F, you did an easy 8-mile tempo run in a light long-sleeve and felt fine. Today, your fingers go numb inside the first mile.
Identifying the hard crack candy stage across Celsius and Fahrenheit scales for precision sugar work without a thermometer
Drop, Snap, Listen: The Cold Water Test That Replaces Your Thermometer Here's the trick that saves every batch: keep a small bowl of ice water next to your stove.
Quick reference chart for swapping fan-forced Celsius baking temps to US conventional Fahrenheit settings
According to a 2023 analysis of the top 50 food blogs globally, 68% of baking recipes published online use metric measurements paired with fan-forced oven settings.
Understanding the exact algebraic formula for converting Celsius to Fahrenheit and when precision matters over mental math
You're three days into a lager fermentation. The recipe—translated from a German brewing forum—says hold steady at 4°C. Your chamber controller displays Fahrenheit.
Translating European fan oven recipes to standard US conventional Fahrenheit temperatures without ruining bake times
It's 9 a.m. on a Saturday. You found a lemon drizzle cake on a charming British baking blog, and so far you've done everything right: butter softened, eggs at room temperature, loaf pan lined with parchment.
Evaluating the Accuracy Margin of Error When Using the Double and Add 30 Temperature Conversion Trick for Everyday Weather Vs Scientific Use
You're standing at a trailhead in the Cairngorms. The information board reads 5°C. Your brain does the thing: double it (10), add 30, arrive at 40°F. You grab a light fleece and start walking.
350 Fahrenheit To Celsius Fan Oven: Cut Bake Time 20%
Convert 350 Fahrenheit to Celsius for a fan assisted oven. See our worked calculation dropping temp to 160°C and cutting bake time by 20%. Fix your recipe now.
Easy Memory Tricks to Convert Celsius to Fahrenheit in Your Head Without a Calculator
I was sitting in the back row of a press briefing at COP28 in Dubai when a colleague from Reuters leaned over and whispered, "They just said the heat index hit 47 degrees — how bad is that?"
Celsius to Fahrenheit: Mental Math Trick Beats Formula
Reflecting on a real lab example, we compare the standard formula against a simple memory trick to convert Celsius to Fahrenheit. Master mental math today.
Celsius Fan Oven Fahrenheit: 3 Steps Perfect Bakes
Stop ruined bakes. Convert European fan oven Celsius to US Fahrenheit conventional settings using this evidence-led, 3-step checklist. Get exact temps now.
Fahrenheit to Celsius: 3 Steps Bake Bread Convection
Convert Fahrenheit to Celsius for baking bread in convection ovens without calculators. Follow 3 concrete steps ensuring perfect bakes. Start baking today!
How to Convert Celsius to Fahrenheit for Precise Candy Making Sugar Stages
I spent three weekends last winter trying to perfect a single batch of salted caramel. The first two attempts scorched. The third turned grainy before it ever reached the jar.
Quick Mental Math Trick to Convert Celsius to Fahrenheit for Baking Oven Temperatures
You found a gorgeous sourdough loaf on a British baking blog. The instructions say: "Preheat your oven to 220°C." You glance at your oven dial. It reads 350, 375, 400 — all Fahrenheit.
Celsius to Fahrenheit Memory Trick: Stop Ruined Bakes
Stop ruining bakes with wrong oven temps. Use this easy memory trick to convert Celsius to Fahrenheit for baking and fix temperature conversion errors now!
Kelvin to Celsius: Fixing Lab Exam Math Mistakes
I watched a student fail a lab exam by botching Kelvin to Celsius math. See the evidence-backed mental tricks that fix these common conversion mistakes now.
Celsius to Fahrenheit: Decode Any Weather Forecast
Stop guessing if 20°C means shorts or a heavy winter coat. Learn a simple memory trick to convert Celsius to Fahrenheit in your head instantly. Start now!
Convert Fan-Assisted Oven Temperatures: Memory vs Math
Need to convert fan-assisted oven temperatures? Compare easy memory tricks against complex math formulas to achieve flawless home baking. Read my guide now!
180C vs 350F: Bake Time Conversion Checklist
Adjusting 180C to 350F bake times? Compare temperature matching versus time-shifting via our concrete checklist. Review the steps and bake perfectly today.
Celsius vs Fahrenheit: 3 Baking Temp Memory Habits
Stop guessing baking temps. Convert Celsius to Fahrenheit using 3 hard-won memory habits. Master your oven today—read the full step-by-step guide right now!
Fan-Assisted Oven Celsius Fahrenheit: 15 Verified Results
Master European recipes via our verified fan-assisted oven Celsius Fahrenheit conversion data. We tested 15 bakes. Convert your temps accurately right now!
How to Convert Celsius to Fahrenheit in Your Head Using Simple Memory Tricks for Science Students
Because nobody ever taught you the why behind the numbers — they just handed you a formula and walked away.
Celsius to Fahrenheit Fan Ovens: Save Sourdough Crusts
Fan ovens burn sourdough crusts before centers cook. Convert Celsius to Fahrenheit accurately, fix temperature pitfalls, and rescue every loaf. Read now.
How to Convert Celsius to Fahrenheit for Candy Making Sugar Stages Without an Instant Calculator
I still remember the smell. Caramelized sugar, smoke, and the distinct odor of a ruined Sunday afternoon.