Fahrenheit to Celsius Converter – Instant & Accurate Tool
Convert Fahrenheit to Celsius instantly with our free online tool. Ideal for Indian students, scientists, and following international recipes. Get precise results in °C.
Temperature Converter - Celsius to Fahrenheit & KelvinThe quick answer for 1 Fahrenheit — type any value below for the exact result
Fahrenheit
Celsius
Fahrenheit to Celsius Conversion Formula
Fahrenheit and Celsius Explained
Fahrenheit (f)
Fahrenheit (symbol °F) is the temperature scale of everyday American life. Water freezes at 32° and boils at 212°, with exactly 180 degrees spanning the interval, and its zero was set at the freezing point of a salt-brine mixture — the coldest reference its inventor could reproduce reliably. One Fahrenheit degree equals five-ninths of a Celsius degree, so the scale takes smaller steps: 0° signals dangerous cold, 70° reads as comfort, and 100° marks an extreme heat day.
Where it is used: Weather reports, ovens, thermostats, and medical thermometers in the United States and a handful of territories; older equipment worldwide may still carry dual markings.
Origin: Daniel Gabriel Fahrenheit, a Polish-born instrument maker working in the Netherlands, published the scale in 1724 alongside the first reliable mercury thermometers.
Celsius (c)
The Celsius scale (symbol °C) is the metric standard for temperature, assigning 0° to the freezing point of water and 100° to its boiling point at standard atmospheric pressure. Each degree is exactly one kelvin wide, which lets scientists move between everyday and absolute scales with a single addition. The round hundred-degree span makes intuitive sense of weather: -10° is harsh winter, 20° a comfortable afternoon, and 40° a dangerous heat wave — the reference frame used by most of the planet.
Where it is used: Daily temperatures everywhere outside the US: forecasts, kitchens, hospitals, and schools, plus scientific work as the companion scale to kelvin.
Origin: Anders Celsius, a Swedish astronomer, created the scale in 1742; his original version ran boiling-to-freezing and was inverted to the familiar direction after his death.
Fahrenheit to Celsius Conversion Table
| Fahrenheit (f) | Celsius (c) |
|---|---|
| -40 f | -40 c |
| -20 f | -28.8888888889 c |
| 0 f | -17.7777777778 c |
| 20 f | -6.6666666667 c |
| 32 f | 0 c |
| 40 f | 4.4444444444 c |
| 50 f | 10 c |
| 68 f | 20 c |
| 70 f | 21.1111111111 c |
| 80 f | 26.6666666667 c |
| 90 f | 32.2222222222 c |
| 98.6 f | 37 c |
| 100 f | 37.7777777778 c |
| 120 f | 48.8888888889 c |
| 150 f | 65.5555555556 c |
| 200 f | 93.3333333333 c |
| 250 f | 121.1111111111 c |
| 350 f | 176.6666666667 c |
| 450 f | 232.2222222222 c |
Celsius to Fahrenheit Conversion Table
| Celsius (c) | Fahrenheit (f) |
|---|---|
| -40 c | -40 f |
| -20 c | -4 f |
| -10 c | 14 f |
| 0 c | 32 f |
| 10 c | 50 f |
| 20 c | 68 f |
| 25 c | 77 f |
| 30 c | 86 f |
| 37 c | 98.6 f |
| 50 c | 122 f |
| 100 c | 212 f |
| 150 c | 302 f |
| 180 c | 356 f |
| 200 c | 392 f |
Fahrenheit to Celsius in Everyday Objects
Common real-world examples that make Fahrenheit and Celsius easy to picture at a glance.
| Fahrenheit (f) | Celsius (c) | |
|---|---|---|
| Freezing point of water | 32 f | 0 c |
| Fridge food-safety limit | 40 f | 4.4444444444 c |
| Ideal office temperature | 68 f | 20 c |
| Scald-risk water heater max | 120 f | 48.8888888889 c |
| Slow-cooker simmer | 180 f | 82.2222222222 c |
| Boiling point at sea level | 212 f | 100 c |
| Midwest cold snap | -20 f | -28.8888888889 c |
| Paper ignition point | 451 f | 232.7777777778 c |
When You Need Fahrenheit to Celsius Conversions
Setting HVAC and pool equipment abroad
US-made thermostats default to 78°F (25.56°C) for cooling and pool heaters to 82°F (27.78°C); converting the dials keeps a metric household comfortable without guesswork.
Translating US meat-temperature guides
The USDA says poultry is safe at 165°F (73.89°C) and steak hits medium-rare at 135°F (57.22°C) — numbers a Celsius kitchen needs converted before dinner.
Understanding US weather extremes
Record readings like Death Valley's 134°F (56.67°C) and Antarctica's -128.6°F (-89.22°C) only land with their metric equivalents, where they sit far beyond any Celsius forecast.
Baby bath and formula safety
Pediatric guidance calls bath water about 100°F (37.78°C) and warns that tap water above 120°F (48.89°C) scalds in seconds — checks a parent with a Celsius thermometer must convert.
Related Temperature Conversions
How to Use
-
1
Enter the Fahrenheit Value
Type the temperature in Fahrenheit — for example, enter 98.6 to check body temperature in Celsius.
-
2
View the Celsius Result
The equivalent in Celsius appears instantly: 98.6°F = 37°C — the standard normal human body temperature.
-
3
Copy or Swap
Copy the result for your records or click Swap to convert from Celsius back to Fahrenheit.
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4
Check the Reference Table
Browse the table for common values like 104°F = 40°C (high fever) or 32°F = 0°C (freezing point of water).
Why Use Be Converter?
Instant Temperature Calculation
Get precise Fahrenheit to Celsius results in real-time as you type. No need to memorise complex formulas.
Scientifically Accurate Results
Uses the standard formula C = (F - 32) × 5/9 for precise conversions, suitable for laboratory work and academic projects.
Useful Reference Table
Common temperatures at a glance — from freezing points to oven settings — covering weather and cooking needs.
Swap with One Click
Toggle between Fahrenheit and Celsius instantly. Useful when checking global weather forecasts or US-based food blogs.
Free & No Registration
No sign-up or account required. Use this tool for unlimited conversions, whether for homework or kitchen needs.
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All calculations run in your browser. No data is sent to any server, ensuring complete privacy.
Frequently Asked Questions
What is the formula to convert Fahrenheit to Celsius?
What is 350°F in Celsius for baking cakes?
How do I quickly estimate Fahrenheit to Celsius?
What is 100°F in Celsius?
At what temperature are Fahrenheit and Celsius the same?
What is 100°F in Celsius?
What is -459.67°F in Celsius?
What is 0°F in Celsius?
About Fahrenheit to Celsius Converter
Our free online Fahrenheit to Celsius converter is designed to help you solve temperature problems quickly. Whether you are a student in Hyderabad working on a physics assignment, a healthcare professional checking a patient's fever, a homemaker trying a new recipe from an international blog, or simply checking the weather forecast for a trip abroad, this tool is for you. India predominantly uses the Celsius scale (metric system), but understanding Fahrenheit is essential for global context. The Fahrenheit scale sets the freezing point of water at 32° and boiling at 212°, whereas the Celsius scale uses 0° and 100° respectively.
Expert Tips for Temperature Conversion in India
The accurate formula is C = (F - 32) × 5/9. Alternatively, you can divide by 1.8: C = (F - 32) ÷ 1.8. Both methods give the same mathematically correct answer.
For Indian cooking: To bake a cake in a standard OTG, 350°F is roughly 175°C to 180°C. For slow cooking, 300°F is about 150°C, and for high heat (grilling tandoori style), 450°F is around 230°C.
Key reference points for daily life: 32°F = 0°C (freezing), 50°F = 10°C (cool winter morning in Shimla), 68°F = 20°C (pleasant AC room temp), 86°F = 30°C (typical Mumbai weather), 104°F = 40°C (extreme summer heat in Delhi).
When viewing US/UK weather: 70°F is a comfortable 21°C. If they predict a heatwave at 95°F, that translates to a searing 35°C — similar to Chennai in May.
In medical contexts, precision is vital. A body temperature of 100.4°F is exactly 38°C. If a thermometer shows 102.2°F, that is 39°C, and you should consult a doctor immediately.