To convert degrees Celsius (°C) to degrees Fahrenheit (°F), you can use the following formula:

°F = (°C × 9/5) + 32

Plugging in the given temperature of 37.8°C into the formula:

°F = (37.8°C × 9/5) + 32

°F = (340.2/5) + 32

°F = 68.04 + 32

°F = 100.04

Therefore, 37.8 degrees Celsius is approximately equal to 100.04 degrees Fahrenheit.