How the conversion works
(30 × 9/5) + 32 = 86°F. The quick answer is rounded for readability; use the live calculator below for another value or more precision.
30°C to °F
Convert 30 degrees Celsius to Fahrenheit.
Quick reference
86°F
30°C → Fahrenheit
When this is useful
Temperature conversions are useful for weather, cooking, laboratory readings, equipment specifications and international documentation.
Quick comparison table
Compare the current answer with nearby or reverse values from the same converter family. Open any row to keep the units preselected and change the number.
30°C on care labels, forecasts and thermostats
30°C is exactly 86°F. On a clothing label it is the coolest common machine wash: the tub symbol with 30 inside (ISO 3758) means wash at no more than 30°C, or 86°F on a US machine dial.
| Celsius | Fahrenheit |
|---|---|
| 25°C | 77°F |
| 28°C | 82.4°F |
| 30°C | 86°F |
| 32°C | 89.6°F |
| 35°C | 95°F |
- A care label with 30 and one bar under the tub asks for a gentle (synthetic) cycle at that temperature; two bars mean a very gentle wool or delicates cycle.
- Each Celsius degree is 1.8 Fahrenheit degrees, so a step from 30°C to 31°C on a thermostat moves the reading from 86°F to 87.8°F.
- 28°C is 82.4°F, which is why "28 is about 82" is a handy pair to remember next to 30 = 86.
- On the US National Weather Service heat index, 30°C (86°F) lands in the "caution" band at any humidity.
Exact working in two steps: 30 × 1.8 = 54, then 54 + 32 = 86°F.
Convert another value
86 °F
30 °C
A quick note before you use the number
Celsius and Fahrenheit use an offset as well as a scale factor, so temperature conversion is not a simple multiplication. Kelvin is handled with the standard absolute-temperature formula.
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