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Resistor-divider tolerance
Calculate the nominal output and worst-case voltage range of an unloaded resistor divider.
01 Your inputs
02 Your result
Enter your values and select Calculate.
The method
A worked example
With 5 V, two 10 kΩ resistors, and ±1% tolerance on each, the nominal output is 2.5 V. The corner combinations give 2.475 V minimum and 2.525 V maximum. Divider current is 0.25 mA.
Assumptions & limits
Unloaded DC divider with positive resistances and a fixed, nonnegative input voltage. Tolerances are independent worst-case bounds, not a statistical confidence interval. Load impedance, input-voltage tolerance, temperature coefficients, and self-heating are excluded. Enter resistances in ohms.
Calculation source: Engineering Workbench calculation engine; unloaded DC divider model.