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Unit Converters Converter
Fixed conversion factors, reviewed October 2026 — exact SI and customary ratios, not a calibrated instrument or legal-for-trade measure.
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Celsius and Fahrenheit do not share a zero: water freezes at 0 °C / 32 °F and boils at 100 °C / 212 °F. A common oven setting of 180 °C is 180 × 9/5 + 32 = 356 °F. Skipping the +32 would give 324 °F and bake hotter than the recipe intended.
The scale formulas are exact. They do not correct for a cheap oven that runs 10 °C hot, altitude, or a medical thermometer’s uncertainty. For food safety or clinical work, use a calibrated probe, not a converted weather number.
It does not compute wind chill, heat index, or feels-like values, correct a miscalibrated oven, or admit temperatures below absolute zero — such inputs are rejected, not converted.
Static conversion factors — not for precision metrology.
356 °F. Multiply by 9/5 (or 1.8), then add 32. The other way: subtract 32, then multiply by 5/9.
Instruments apply temperature, calibration, and rounding rules this converter does not. For everyday conversions the factors here are exact; for certification, use calibrated equipment.
Where both exist — such as gallons — the unit list names each, so pick the one you mean.
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