PPM Error Calculator

Calculate PPM Error



Formula

To calculate the PPM error:

\[ \text{PPM Error} = \left(\frac{\text{Measured Value} - \text{True Value}}{\text{True Value}}\right) \times 10^6 \]

Where:

What is PPM Error?

PPM error, or parts per million error, is a unitless measure of the accuracy of a measurement relative to a true or accepted value. It is commonly used in fields such as chemistry, physics, and engineering to quantify the precision of measurements and instruments. A lower PPM error indicates a more accurate measurement, meaning the measured value is closer to the true value.

Example Calculation

Let's assume the following values:

Using the formula:

\[ \text{PPM Error} = \left(\frac{1000 - 980}{980}\right) \times 10^6 \approx 20408.16 \text{ ppm} \]

The PPM error is approximately 20,408.16 ppm.