How to Use the Body Temperature Checker
Enter your measured temperature, the measurement site, and your age group. The calculator assesses whether you have hypothermia, normal temperature, low fever, fever, or high fever, and provides guidance on what to do.
Normal Temperature Ranges by Site (°C)
| Site | Normal Range | Fever Threshold |
|---|---|---|
| Oral | 36.1–37.2°C | ≥37.3°C |
| Axillary | 35.5–36.9°C | ≥37.0°C |
| Ear | 36.6–37.9°C | ≥38.0°C |
| Rectal | 36.6–37.9°C | ≥38.0°C |
Frequently Asked Questions
Does the measurement site affect normal range?
Yes. Rectal and ear readings are 0.3–0.5°C higher than oral; axillary is 0.3–0.5°C lower. Use the appropriate site's range for accurate assessment.
What temperature is a fever in adults?
An oral temperature above 37.2°C (99°F) is a low-grade fever. Above 38.0°C (100.4°F) is considered a true fever warranting attention.
When should I seek emergency care?
For temperatures of 40°C (104°F) or above, or any fever in an infant under 3 months, seek emergency care immediately.