Calibration Curve Calculator
Fit a least-squares line to your standards, read off R² and standard error, and interpolate an unknown sample.
Calibration standards
| Concentration (x) | Signal (y) | |
|---|---|---|
Fitted calibration line
y = 0.0935x + 0.03
R² = 0.99877 · Good linearity
Slope (m)
0.0935
Intercept (b)
0.03
Std. error
0.01197
Solve an unknown sample
Formula reference
Fit:
y = m·x + bUnknown:
x = (y − b) / m