Freezing: 0°C | Boiling: 100°C
Why it's great: Based on water. It's simple, logical, and universal.
Wild Fact: Originally, Celsius had 100°C as freezing and 0°C as boiling, but scientists flipped it later!
Freezing: 32°F | Boiling: 212°F
Why the U.S. loves it: More precise for everyday temperatures.
Weird Origin: It was based on a mix of salt water, human body temp, and ice!
Starts at: 0K (-273.15°C), where atoms completely stop moving.
Used by: NASA, physicists, and space researchers.
Mind-blowing fact: The coldest temperature ever recorded was 38 trillionths of a Kelvin! Scientists still don’t know why.
Used in thermodynamics and engineering, almost identical to Kelvin, but measured in Fahrenheit-style degrees.
Used in 17th-century Europe for brewing and cooking, still appears in some old French cheese recipes.
It depends! Scientists love Kelvin, the world trusts Celsius, and the U.S. just won’t let go of Fahrenheit.
Don’t have time for formulas? Use these shortcut tricks instead:
🔥 Celsius to Fahrenheit (Fast Way)
Double the number, then add 30.
(Example: 20°C → (20 × 2) + 30 ≈ 70°F)
❄️ Fahrenheit to Celsius (Easy Trick)
Subtract 30, then divide by 2.
(Example: 100°F → (100 - 30) ÷ 2 = 35°C)
💡 Celsius to Kelvin? Just add 273.15!
(Example: 25°C = 298.15K)
👀 Kelvin to Fahrenheit? Use this shortcut:
(K × 1.8) - 459.67
"Fridge to Oven" Trick (For Cooking!)
🔹 Refrigerator temperature: ~4°C (40°F)
🔹 Freezer temperature: ~-18°C (0°F)
🔹 Oven baking temperature: ~180°C (350°F)
Here are the most searched-for conversions:
| Celsius (°C) | Fahrenheit (°F) | Kelvin (K) |
|---|---|---|
| 0°C | 32°F | 273.15K |
| 10°C | 50°F | 283.15K |
| 20°C | 68°F | 293.15K |
| 30°C | 86°F | 303.15K |
| 100°C | 212°F | 373.15K |
🔥 Lava isn’t always red-hot. Some lava flows at 1,600°F (900°C), but the hottest lava glows blue because it burns sulfur at insane temperatures.
❄️ The coldest city in the world is literally unlivable. Oymyakon, Russia, drops to -67°C (-90°F). Your eyelashes freeze instantly if you step outside!
🌎 The Sun’s surface is 5,500°C (9,932°F), but its atmosphere is even hotter. The corona can reach over 1 million degrees Celsius; scientists still don’t know why.
🔥 The hottest place in the solar system isn’t the Sun. The LHC (Large Hadron Collider) created temperatures 250,000 times hotter than the Sun’s core!
🌬️ Wind can make freezing temperatures deadlier. At -40°C (-40°F), a 30 mph wind makes it feel like -75°C (-103°F). Exposed skin freezes in minutes.
🧊 Dry ice is so cold, it skips the melting stage. At -78.5°C (-109°F), dry ice turns directly into gas instead of melting into a liquid.
💀 You’d boil alive on Mars. At 0°C (32°F), Mars’ low pressure makes water (and blood) instantly turn to gas. Without a spacesuit, you’d boil alive.
Want more mind-blowing temperature facts? Keep converting!
People don’t just convert temperatures for fun; here’s when it really matters:
🥩 Cooking & Baking – Ever tried a European recipe and had to figure out 180°C in Fahrenheit? (Hint: It’s about 350°F.)
🌍 Traveling – If your weather app shows -10°C in Canada, do you need a jacket? (Yes, it’s 14°F. Wear two.)
🏠 Home & HVAC – Air conditioners use Kelvin for refrigerant pressure.
📡 Science & Space – NASA’s calculations rely on Kelvin for precision.
🚗 Car Engines & Racing – Engine efficiency changes with temperature; Fahrenheit vs. Celsius matters in tuning.
📌 What do you use temperature conversions for?