iOSOhm's law and circuit math on your phone.
Amperio is an electronics calculator for students and makers. It covers Ohm's law, resistor color codes, voltage dividers, and unit conversion.
The problem
Circuit homework and bench work still need the same few calculations. A general calculator makes you remember the formulas. Amperio keeps Ohm's law, resistor codes, voltage dividers, and units in one place.
What it does
- Ohm's law: voltage, current, resistance, and power
- 4-band and 5-band resistor color-code decoder
- Voltage divider calculator
- Unit conversion for V, A, Ω, Hz, and W
- Works offline without an account
Who it's for
- Electronics students
- Makers and hobbyists
- Anyone checking a circuit at the bench
- People who want Ohm's law without hunting for a formula
Frequently asked questions
What is Amperio?
Amperio is an electronics calculator for iPhone and iPad. It covers Ohm's law, resistor color codes, voltage dividers, and unit conversion.
Does Amperio calculate Ohm's law?
Yes. Enter any two of voltage, current, resistance, or power and Amperio fills in the rest.
Can it decode resistor color codes?
Yes. You can read 4-band and 5-band resistors by choosing the color bands.
Does Amperio work offline?
Yes. The calculators run on your device and do not require an account or an internet connection.
Does Amperio require a subscription?
No. Amperio is free on the App Store and does not require an account.
Open Amperio, enter two values, and get the rest.
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