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Celsius to Fahrenheit

Convert temperatures between Celsius, Fahrenheit and Kelvin instantly with exact formulas.

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    Result

    This page opens the temperature converter preset to Celsius → Fahrenheit. The exact formula is °F = °C × 9/5 + 32: multiply the Celsius value by 1.8, then add 32. Unlike length or weight, temperature scales have shifted zero points, so there is no single multiplication factor.

    Anchors worth memorizing: 0 °C = 32 °F (water freezes), 20 °C = 68 °F (room temperature), 37 °C = 98.6 °F (normal body temperature), 100 °C = 212 °F (water boils at sea level). The two scales cross at −40°, where −40 °C = −40 °F exactly.

    You will use this direction for US weather forecasts, oven settings in American recipes, thermostats and medical thermometers. Type a Celsius value and Fahrenheit appears instantly; the table below lists everyday temperatures from a −40° cold snap to boiling water.

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    Accepted Formats & Rules

    • Three scales: Celsius, Fahrenheit and Kelvin.
    • Two-way live fields with the exact formula displayed.
    • Reference table of everyday temperatures: weather, body, cooking, boiling.

    Key Benefits

    ✓ Exact conversion formulas (°F = °C × 9/5 + 32, K = °C + 273.15) — the formula in use is always shown next to the result.
    ✓ Live two-way conversion: type in either field, the other updates instantly, and a swap button flips the scales.
    ✓ Runs entirely in your browser with no server calls — fast, private and available offline.

    Use Cases

    • • Decode US weather forecasts by turning Fahrenheit into Celsius instantly.
    • • Convert oven temperatures from American recipes (350°F) to Celsius settings.
    • • Switch between Celsius and Kelvin for physics and chemistry homework.