Temperature Tools
Free temperature converter, thermometer selector and quick reference charts.
Free, simple tools for everyday temperature questions. They run in your browser, and nothing you enter is stored.
Fahrenheit ⇄ Celsius converter
°C = (°F − 32) × 5 ⁄ 9
Which thermometer do I need?
Pick the job, and we’ll tell you the type of thermometer that fits and point you to the right guides.
Instant-read probe thermometer
A thin probe reads the internal temperature in seconds. For long roasts and smoking, add a leave-in or wireless probe so you can monitor without opening the oven or lid.
Read the guidesInfrared (non-contact) thermometer
Infrared thermometers read surface temperature only — they cannot tell you the inside of a steak or a pot of liquid below the surface.
Read the guidesDigital thermo-hygrometer
Shows temperature and humidity together. Choose a Wi-Fi model if you want alerts when you are away from home.
Read the guidesAppliance thermometer (dial or digital)
The FDA recommends keeping refrigerators at or below 40°F (4°C) and freezers at 0°F (−18°C). A dedicated appliance thermometer is the simplest way to check.
Read the guidesMedical thermometer (oral, ear, forehead or rectal)
The right method depends on age. Our guide summarises current pediatric guidance — and when to call a doctor instead of re-checking.
Read the guidesSmart Wi-Fi or Bluetooth sensor
Bluetooth sensors only update when your phone is nearby; Wi-Fi models (sometimes via a hub) can alert you anywhere.
Read the guidesSafe minimum cooking temperatures
| Food | °F | °C |
|---|---|---|
| Beef, pork, veal, lamb steaks, roasts and chops (rest 3 min) | 145°F | 63°C |
| Fish | 145°F | 63°C |
| Ground meat and sausage | 160°F | 71°C |
| Egg dishes | 160°F | 71°C |
| All poultry | 165°F | 74°C |
| Leftovers and casseroles | 165°F | 74°C |
Source: FoodSafety.gov. See the full chart with placement tips.
Fridge and freezer
The FDA recommends keeping your refrigerator at or below 40°F (4°C) and your freezer at 0°F (−18°C). Learn how to check them.