80 Fahrenheit to Celsius
80 °F equals approximately 26.67 °C. Change the value, swap Celsius and Fahrenheit, or copy the result with its formula.
Best solution
Default conversion: 80 °F is approximately 26.67 °C; exact result: 80/3 °C.
Temperature reading · up to 2 decimal places
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Calculation for 80 °F
(80 − 32) × 5/9 = 48 × 5/9 = 80/3 °C = 26.667… °C ≈ 26.67 °C.
The exact result is 80/3 °C. In decimal form, it is approximately 26.67 °C.
For a temperature reading, use °F = °C × 9/5 + 32, or °C = (°F − 32) × 5/9. Results are displayed to at most two decimal places. Negative values are allowed down to −273.15 °C or −459.67 °F (absolute zero). The calculator converts readings, not temperature changes: a change of 1 °C is a change of 1.8 °F, with no 32-degree offset. NIST temperature conversion reference.
Changing the input updates the calculator only; the worked example below it stays on the value named in this page. Swap uses the displayed, rounded result as the next input, so repeated swaps may introduce a small rounding difference. Unit conversion does not determine a diagnosis or a recommended device setting.
Real-World Context & Technical Standards
Warm Summer Beach Day
80 °F (26.67 °C) is the classic temperature marker for warm summer afternoons, opening swimming pools and recreational lake activities.
Air Conditioning Trigger Point
Most households turn on central air conditioning once indoor room temperatures climb past 80 °F to restore sleeping comfort.
Related conversions
Frequently Asked Questions
How do I convert 80 °F to °C?
(80 − 32) × 5/9 = 48 × 5/9 = 80/3 °C = 26.667… °C ≈ 26.67 °C.
Is 26.67 °C exact or rounded?
The exact result is 80/3 °C. In decimal form, it is approximately 26.67 °C.