WWorkmate

Temperature Converter

Convert Celsius, Fahrenheit, and Kelvin instantly with presets and a feel guide.

Conversion

☀️ Warm

°C
25
°F
77
K
298.15

°F = °C × 9/5 + 32, K = °C + 273.15. Korea uses Celsius; the US uses Fahrenheit.

What this tool does

This temperature converter instantly translates Celsius (°C), Fahrenheit (°F), and Kelvin (K). Korea and Europe use Celsius, the US uses Fahrenheit, and science/engineering uses absolute Kelvin. Built on F = C × 9/5 + 32 and K = C + 273.15, it adds body-temperature and boiling presets plus a feel guide (cold / mild / hot). Handy for foreign weather apps, oven recipes, and AC set points.

Who uses this

  • Read US weather in Fahrenheit as Korean-style Celsius
  • Convert overseas recipe oven temps (e.g. 350°F)
  • Check fever thresholds (°F ↔ °C)
  • Compute absolute temperature (Kelvin) for science/engineering
  • Interpret AC and boiler set temperatures

How to use

  1. 1Pick the base unit to convert from (°C / °F / K).
  2. 2Enter a temperature and the other two units convert immediately.
  3. 3Tap a body/boiling preset to load common temperatures, and use the feel guide for a quick sense of it.

Conversion formulas

Celsius → Fahrenheit: °F = °C × 9/5 + 32 Fahrenheit → Celsius: °C = (°F − 32) × 5/9 Celsius → Kelvin: K = °C + 273.15 Kelvin → Celsius: °C = K − 273.15 Reference points: Water freezes = 0°C = 32°F = 273.15K Water boils = 100°C = 212°F = 373.15K Body temp = 36.5°C ≈ 97.7°F −40°C = −40°F (where Celsius and Fahrenheit meet)

Worked examples

Example 1: 100°F → Celsius

(100 − 32) × 5/9 = 37.8°C. A US forecast of 100°F is a 37.8°C heat wave in Korean terms.

Example 2: Recipe 350°F → Celsius

(350 − 32) × 5/9 ≈ 177°C. Set the oven to roughly 175–180°C for a US recipe's 350°F.

Example 3: What is 25°C in Fahrenheit?

25 × 9/5 + 32 = 77°F. A pleasant spring/autumn 25°C equals 77°F.

Frequently asked questions

Is there a quick way to estimate Fahrenheit to Celsius?+

Roughly, '(°F − 30) ÷ 2'. Example: 70°F → (70−30)/2 = 20°C (actual 21.1°C). It is close enough for everyday weather sense.

Why does Kelvin have no degree (°) symbol?+

Kelvin is an absolute-temperature SI base unit. Because it is an absolute scale starting at 0K (absolute zero), it is written simply as K, without 'degrees'.

Is there a temperature where Celsius equals Fahrenheit?+

Yes — exactly at −40°C = −40°F. Due to the different slopes of the two scales, they match only at this single point.

What is normal body temperature in Fahrenheit?+

Korea uses 36.5°C ≈ 97.7°F; the commonly cited US 98.6°F equals 37°C. A fever is usually 38°C (100.4°F) or above.

Why does my oven differ from the recipe?+

Beyond the unit difference (°F↔°C), ovens vary by ±10–20°C in real temperature. Use the converted value as a baseline and calibrate with an oven thermometer.

Cautions

  • •Formulas are exact; displayed digits may be rounded.
  • •Real oven/appliance temps can vary ±10–20°C — the conversion is a baseline.
  • •For fever/medical decisions, rely on a medical thermometer, not the conversion.
  • •Kelvin starts at absolute zero (−273.15°C) — negative Kelvin does not exist.

Last reviewed: 2026-06-06

Temperature Converter — °C ↔ °F ↔ K