Temperature Converter
Free Temperature Converter — Celsius, Fahrenheit & Kelvin (2026)
Three scales. One phenomenon. Converting between them is straightforward with the right formula — but mentally calculating “what is 350°F in Celsius for baking?” or “is 104°F fever dangerous?” (yes, urgently so — it’s 40°C) is where most people reach for a tool.
KEY TAKEAWAYS
- Celsius to Fahrenheit: °F = (°C × 9/5) + 32
- Fahrenheit to Celsius: °C = (°F − 32) × 5/9
- Celsius to Kelvin: K = °C + 273.15 (no degree symbol — Kelvin is absolute, not a “degree” scale)
- Pakistan uses Celsius exclusively. Summer temperatures in Sindh and Punjab reach 45–52°C (113–125°F).
- Absolute zero = 0 Kelvin = −273.15°C = −459.67°F — the coldest theoretically possible temperature.
The Three Temperature Scales
Celsius (°C)
The international standard. Used in science, medicine, cooking, and daily weather in Pakistan and virtually all countries except the US.
Key reference points:
- Water freezes: 0°C
- Water boils: 100°C
- Body temperature: 37°C
- Comfortable room temp: 22–25°C
Fahrenheit (°F)
Used primarily in the United States for everyday temperature. Still used in some cooking recipes and US-produced media.
Key reference points:
- Water freezes: 32°F
- Water boils: 212°F
- Body temperature: 98.6°F
- Comfortable room temp: 72–77°F
Kelvin (K)
The SI unit of temperature used in physics and chemistry. Starts at absolute zero — the temperature at which all molecular motion stops. No negative values possible.
Key reference points:
- Absolute zero: 0 K = −273.15°C
- Water freezes: 273.15 K
- Water boils: 373.15 K
- Room temperature: ~293–298 K
Conversion Formulas
| From | To | Formula |
|---|---|---|
| Celsius (°C) | Fahrenheit (°F) | (°C × 9/5) + 32 |
| Fahrenheit (°F) | Celsius (°C) | (°F − 32) × 5/9 |
| Celsius (°C) | Kelvin (K) | °C + 273.15 |
| Kelvin (K) | Celsius (°C) | K − 273.15 |
| Fahrenheit (°F) | Kelvin (K) | (°F − 32) × 5/9 + 273.15 |
| Kelvin (K) | Fahrenheit (°F) | (K − 273.15) × 9/5 + 32 |
Quick Reference Conversion Table
| Celsius | Fahrenheit | Kelvin | Context |
|---|---|---|---|
| −40°C | −40°F | 233.15 K | Both scales meet here |
| 0°C | 32°F | 273.15 K | Water freezes |
| 20°C | 68°F | 293.15 K | Cool room temp |
| 25°C | 77°F | 298.15 K | Standard room temp |
| 37°C | 98.6°F | 310.15 K | Body temperature |
| 40°C | 104°F | 313.15 K | High fever — seek medical attention |
| 45°C | 113°F | 318.15 K | Pakistan summer heat peak |
| 52°C | 125.6°F | 325.15 K | Record temps in Jacobabad |
| 100°C | 212°F | 373.15 K | Water boils |
| 180°C | 356°F | 453.15 K | Common oven baking temp |
| 200°C | 392°F | 473.15 K | High oven temp |
Common Cooking Temperature Conversions
Many international recipes use Fahrenheit (especially American and UK recipes). Key conversions:
| Oven Setting | Fahrenheit | Celsius |
|---|---|---|
| Very low | 250°F | 120°C |
| Low | 300°F | 150°C |
| Medium-low | 325°F | 165°C |
| Medium | 350°F | 175°C |
| Medium-high | 375°F | 190°C |
| High | 400°F | 205°C |
| Very high | 425°F | 220°C |
| Broil/Grill | 500°F | 260°C |
Pakistan Weather Context
Pakistan’s temperature range is among the most extreme on Earth:
- Coldest: Skardu and Gilgit can reach −20°C (−4°F) in winter.
- Hottest: Jacobabad, Sindh holds the record for Asia’s highest temperature: 52.8°C (127°F) recorded in 2021.
- Karachi summer: Typically 35–42°C (95–108°F) with high humidity.
- Lahore summer: 40–47°C (104–117°F), dry heat.
AI Overview Answer
How do you convert Celsius to Fahrenheit? Formula: °F = (°C × 9/5) + 32. Example: 100°C = (100 × 1.8) + 32 = 212°F. To convert Fahrenheit to Celsius: °C = (°F − 32) × 5/9. Example: 98.6°F = (98.6 − 32) × 5/9 = 37°C (body temperature). Kelvin = Celsius + 273.15 (absolute temperature, no negative values).
FAQ
Q: What temperature in Celsius is 98.6°F? A: 37°C — normal body temperature.
Q: At what temperature are Celsius and Fahrenheit the same? A: −40°. At −40, both scales read the same value. This is the only crossover point.
Q: Is 40°C dangerous for the human body? A: Yes. 40°C (104°F) is a high fever requiring immediate medical attention. Heat stroke occurs when body temperature reaches 40°C or above.
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