# Dexcom G7 Calibration Guide

> Calibration is not required with the Dexcom G7 Continuous Glucose Monitoring system However you can always log your fasting values to ensure optimal accuracy

Source: https://support.nutrisense.io/en_us/dexcom-g7-calibration-guide-B1LUk50Jxl

Last updated: 2026-01-05T17:14:59.535Z

_Calibration is optional with the Dexcom G7 but can improve accuracy when needed._

**⚡ Key Point:** Calibration is **not required** with the Dexcom G7 Continuous Glucose Monitoring system. However, you can always log your fasting values to ensure optimal accuracy.

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## How to Calibrate Your Sensor

_Follow these simple steps in the Dexcom app to calibrate your G7 sensor._

The Dexcom app has a built-in calibration feature. Calibrating is easy and can be done following the steps below:

1.  **Tap the +** while in the Glucose or History Tab
2.  **For entry type** select "Use as Calibration"
3.  **Enter your blood glucose reading**
4.  **Enter the date and time** of the reading
5.  **Hit save**