Circuit Calculator Pro

Circuit Calculator Pro is a practical electronics toolkit for students, makers, and engineers.

Use 13 calculators in one app:
• Ohm's Law (V, I, R, P)
• Resistors Series/Parallel
• Voltage Divider
• LED Resistor
• RC Time Constant
• Capacitors Series/Parallel
• Inductors Series/Parallel
• Reactance (Xc/Xl)
• Power & Energy
• Wire Voltage Drop
• LED String
• Loaded Divider
• E-Series Finder

Built-in workflow tools:
• Save recent calculations
• Organize results into projects and folders
• Copy/share results instantly
• Export to PDF and image (Premium)

Reference library included:
• Resistor color code guide
• Capacitor code guide
• Formula cheat sheets
• Electronics glossary

Circuit Builder (Premium):
• Drag-and-drop components
• Connect nodes on a grid canvas
• Run circuit analysis and view node voltages/currents
• Save and reopen circuit files

Free plan includes core calculators with ads.
Premium is a one-time purchase that unlocks advanced calculators, circuit builder access, expanded limits, and ad removal.