How do you calculate percentage error of thermometer?

To calculate the percentage error of a thermometer, first determine the difference between the measured temperature and the true or accepted value. This difference is then divided by the true value and multiplied by 100 to convert it into a percentage. The formula is:

[ \text{Percentage Error} = \left( \frac{|\text{Measured Value} - \text{True Value}|}{\text{True Value}} \right) \times 100 % ]

This gives you the percentage error, which indicates how accurate the thermometer's measurement is compared to the true value.