F To C _top_ Link

, on the other hand, designed his scale around the properties of pure water: 0° for freezing and 100° for boiling. Because the Celsius scale is based on powers of ten, it was adopted as the standard for the Metric System and is used by almost every country in the world today. Which One is "Better"?

Multiply the result by , then divide by 9 (or multiply by 0.5556 ). Example: If it is 68°F outside: 68 - 32 = 36 36 × 5 = 180 180 / 9 = 20°C The Mental Shortcut (The "Quick & Dirty" Method) f to c

If you are walking down the street and don’t want to do complex fractions in your head, use this approximation. It’s not perfect, but it gets you within a few degrees of the actual answer. Subtract 30, then cut it in half. Example (80°F): 80 - 30 = 50. Half of 50 is 25°C . (Actual answer: 26.6°C) , on the other hand, designed his scale

The two scales were created for different reasons. based his scale on the freezing point of a brine solution (0°) and the average human body temperature (originally aimed at 96°). Multiply the result by , then divide by 9 (or multiply by 0

While not precise enough for a chemistry lab, this "minus 30, divide by 2" trick is perfect for deciding if you need a jacket or shorts. Key Temperature Milestones

Memorizing a few "anchor points" can help you orient yourself without doing any math at all: Fahrenheit (°F) Celsius (°C) Description 0°C Freezing point of water 50°F 10°C A chilly autumn day 68°F 20°C Comfortable room temperature 86°F 30°C A hot summer day 98.6°F 37°C Average body temperature 212°F 100°C Boiling point of water Why Are They Different?