Calculate values by entering the EIA code or desired value. Determine color rings based on capacitance. Support SMD capacitors and convert between codes and values.
by Gerhard Lentschik★ 4.89 ratingsUtilitiesFreeData updated 2026-09-06
’s provides access to electrical theory topics, including exercises with answers. Features interactive diagrams for hands-on learning. Includes calculators and formulas for electrical calculations. Works offline without ads or subscriptions.
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Perform calculations including resistor color code analysis, transformer voltage and current computations, and voltage, current, resistance, and power determinations. Include upgraded voltage drop calculations compliant with NEC/IEEE standards.
Convert units across 16 categories with 173 units and 2162 conversions. Perform calculations for field strength, resistance, capacitance, and more. Access 62 calculators via in- purchase.
Determine resistor values by selecting ring colors and number of rings. Choose orientation with the larger gap on the right. Receive value, tolerance, and other details.
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