Body Temperature Converter
Convert Celsius, Fahrenheit and Kelvin. See equivalent temperatures without interpreting symptoms or diagnosing fever.
Your inputs
98.6 °F
A converted number is not a diagnosis. Read your thermometer instructions. Values below absolute zero are rejected.
Let’s work it out.
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How to use Body Temperature Converter
- Enter a temperature, including a negative value if needed.
- Choose Celsius, Fahrenheit or Kelvin for both the source and target units.
- Read the equivalent temperatures. Values below absolute zero are rejected; no symptom assessment is made.
Worked example
37 °C × 9/5 + 32 = 98.6 °F.
Formula, accuracy & limitations
°F = °C × 9/5 + 32. K = °C + 273.15.
A converted number is not a diagnosis. Read your thermometer instructions. Values below absolute zero are rejected.
Calculations use your inputs. Main numeric values show up to six decimal places, percentages up to two, and chart labels up to four. Time results use hours, minutes and seconds. Very small nonzero values use scientific notation.
Read the measurement reference ↗Keep the measured number and its unit together
A thermometer reading is incomplete without a unit. Select Celsius, Fahrenheit or Kelvin before typing the reading. Conversions use the standard linear formulas; the output does not correct a faulty device or interpret symptoms.
Read the body temperature converter result
Convert Celsius, Fahrenheit and Kelvin. See equivalent temperatures without interpreting symptoms or diagnosing fever. A converted number is not a diagnosis. Read your thermometer instructions. Values below absolute zero are rejected. Change one input at a time to see which measurement drives the result. Copy the calculated values only after checking the selected units against your original measurement.
Frequently asked questions
Should I enter 98.6 or 986?
Enter the decimal reading exactly as shown, and choose Fahrenheit for 98.6 °F. The equivalent is 37 °C. A misplaced decimal changes the result substantially.
Does this result tell me whether I have a fever?
It converts the number only. Measurement location, device instructions and your circumstances affect clinical interpretation; no fever category is assigned here.
How is body temperature conversion worked out?
°F = °C × 9/5 + 32. K = °C + 273.15.
What would the sample inputs produce?
37 °C × 9/5 + 32 = 98.6 °F.
