Ohmmm

Ohmmm | Ohm's Law Made Simple Stop reaching for a calculator app that wasn't built for electronics. Ohmmm solves Ohm's Law instantly! Voltage, current, resistance, and power all with a clean, focused interface designed specifically for the calculation you actually need. SOLVE FOR ANY VALUE Pick what you're solving for Voltage, Current, Resistance, or Power and enter the values you already know. Ohmmm handles the math instantly, no formulas to remember. BUILT-IN UNIT CONVERSION Work in whatever units make sense for your project millivolts to volts, milliamps to amps, ohms to kilohms to megaohms, milliwatts to watts. Ohmmm converts everything automatically, so you never have to do the math twice. CATCH MISTAKES BEFORE THEY COST YOU In Power mode, if your voltage, current, and resistance values don't actually agree with each other, Ohmmm flags it immediately so a typo doesn't turn into a wrong answer you don't catch until later. NEVER LOSE A CALCULATION Every result is automatically logged to your calculation history. Tap any past entry to instantly restore those exact values perfect for comparing scenarios or picking up where you left off. DESIGNED TO GET OUT OF YOUR WAY No ads. No account required. No unnecessary permissions. Just quick, accurate calculations with a scroll-wheel input that stays out from behind your keyboard. Whether you're a student learning circuit fundamentals, an electrician double-checking a spec, or a hobbyist building your next project, Ohmmm gives you fast, reliable answers — so you can relax and let the app handle the math. Ohmmm is provided for reference only. Always independently verify calculations before use in safety-critical, professional, or commercial applications.