This lets you create a series of data pairs that you'll then use to develop a calibration curve.Ī two-point calibration of a thermometer using the freezing and boiling points of water would have two data pairs: one from when the thermometer is placed in ice water (32 ☏ or 0 ☌) and one in boiling water (212 ☏ or 100 ☌). To perform a calibration, you compare the readings of a device (like the temperature that a thermometer displays) to known values called standards (like the freezing and boiling points of water). What is a Calibration Curve and How is Excel Useful When Creating One?