Here's how to calculate it:
* Formula: F = (C × 9/5) + 32
* Where:
* F = Fahrenheit temperature
* C = Celsius temperature
* Calculation:
* F = (37.8 × 9/5) + 32
* F = 100.04
Therefore, 37.8 degrees Celsius on an adult thermometer is equivalent to 100.04 degrees Fahrenheit.