Calibration Curve Calculator.

Fit a three-point linear calibration curve and estimate an unknown.

On-device calculationNo signup

Set your values

Results update as you type.

02 / ANSWER

Standard 1 x

Standard 1 y

Standard 2 x

Standard 2 y

Standard 3 x

Standard 3 y

Unknown x

Slope

0.00

Intercept

0.00

Predicted y

0.00

How to Use

A least-squares straight line y = intercept + slope × x is fitted to the three entered standards.

Use a named source convention for coefficients and units. This page does not provide laboratory, medical, species, or food-safety advice.

What assumptions are shown?

Fit a three-point linear calibration curve and estimate an unknown. All coefficients, factors, and limits are stated or entered explicitly.