Celsius to Fahrenheit Chart Guide

5 min read•June 1, 2025•Reviewed: June 1, 2026

✓Reviewed by Apex Conversion Editorial Team · Last reviewed June 1, 2026

A printed or bookmarked temperature chart saves time whenever you need to quickly interpret a foreign weather forecast, follow a metric recipe, or understand a medical temperature reading. Instead of calculating each time, you look up the value in the table.

The most useful temperature chart covers three practical ranges: weather temperatures (−20°C to 45°C), cooking temperatures (100°C to 250°C), and the key reference points (freezing, body temperature, boiling). All three ranges are covered below.

Weather Temperatures (−20°C to 45°C)

°C    °F    Description
────  ────  ─────────────────────────
 −20   −4   Very cold, well below freezing
 −15    5   Very cold
 −10   14   Cold, black ice risk
  −5   23   Freezing
   0   32   Water freezes
   5   41   Cold, frost possible overnight
  10   50   Cool — light jacket
  15   59   Mild
  20   68   Comfortable room temperature
  22   72   Pleasant
  25   77   Warm
  30   86   Hot
  35   95   Very hot
  40  104   Heat warning territory
  45  113   Extreme heat

Cooking / Oven Temperatures

°C    °F    Use
────  ────  ─────────────────────────
 110  230   Very slow / meringue drying
 140  284   Slow (custards, slow roast)
 160  320   Low bake (cheesecake, fruit cake)
 170  338   Moderate-low
 180  356   Standard baking (cakes, cookies)
 190  374   Moderate-hot
 200  392   Hot (roast vegetables, chicken)
 210  410   Hot roasting
 220  428   Very hot (pizza, bread crust)
 230  446   High heat (searing in oven)
 250  482   Maximum for most home ovens

Key Reference Points

 °C     °F    Meaning
──────  ────  ─────────────────────────
 −40    −40   Scales coincide
   0     32   Water freezes
  37     98.6 Normal human body temp
  38    100.4 Fever threshold
 100    212   Water boils (sea level)
 121    250   Pressure cooker sterilization
 165    329   Safe poultry internal temp
 232    450   Oven's upper limit (typical)

How to Use a Temperature Chart Effectively

For weather: if you see a forecast of 28°C and want to know how to dress, scan the weather table — 28°C ≈ 82°F, which is warm. You do not need to calculate; the table anchors the number to a meaningful experience.

For cooking: European recipes specify oven temperatures in Celsius. Match the recipe temperature to the cooking table, read across to the Fahrenheit column, and set your oven. Most ovens are calibrated in Fahrenheit in the US but display Celsius on modern models.

Quick Tips

✓
Screenshot the cooking table and save it in your phone's photos for quick access when following metric recipes.
✓
For weather apps: most smartphones let you switch units in Settings — no chart needed if you change the default.
✓
Gas mark temperatures (UK ovens): Gas Mark 4 = 180°C = 356°F. Gas Mark 6 = 200°C = 392°F.
✓
Refrigerator: 4°C (39°F) is the safe cold storage temperature. Freezer: −18°C (0°F) is the recommended freezer setting.

Frequently Asked Questions

What temperature is considered a fever in Celsius?

A fever is generally defined as a body temperature above 38°C (100.4°F). Normal human body temperature is 37°C (98.6°F), though 36.5–37.5°C is the normal range.

What is a comfortable room temperature in Celsius?

Most people find 20–22°C (68–72°F) comfortable indoors. European buildings commonly target 20°C; US buildings are often set to 72°F (22.2°C).

What is the hottest temperature ever recorded on Earth in Celsius?

The highest reliably recorded air temperature is 56.7°C (134°F) at Furnace Creek, Death Valley, California, in 1913.

Does altitude affect the boiling point of water?

Yes. At sea level, water boils at 100°C (212°F). At 5,000 ft (1,500 m), it boils at about 95°C (203°F). At 14,000 ft (4,300 m), it boils at around 86°C (187°F). This affects cooking times for pasta, eggs, and other boiled foods.

Try the Temperature Converter

🌡️ Open Temperature Converter →