Electrical — Science
This directory groups electrical tools within Science. Science calculators make an explicit model easier to evaluate. This collection separates physics, electrical relationships, chemistry and weather estimates. Start by identifying the assumptions: uniform acceleration is not the same as arbitrary motion, an ideal gas is not every real gas, and a component-level electrical formula does not design an installation. The correct tool is the one whose assumptions fit the problem, not simply the one with a familiar output unit.
Start with these tools
Ohm's Law Calculator
Calculate voltage, current, resistance, and power from a selected known pair.
Resistor Color Code
Decode the resistance value and tolerance of axial resistors using the standard electronic color code system.
Voltage Drop Calculator
Calculate voltage drop in a wire run (Single Phase).
Enter a consistent unit system and use signed values when direction matters. A negative displacement can be meaningful; a negative elapsed duration usually needs investigation. Compare the result with an order-of-magnitude estimate and read the limitations before treating it as a measurement. These pages do not replace a laboratory method, approved design, equipment data sheet or local safety requirements. Save a worked input set so another person can reproduce the arithmetic, but keep identifying information out of shared links. Closely related tools remain separate when they solve for different quantities.
electrical
Ohm's Law Calculator
Calculate voltage, current, resistance, and power from a selected known pair.
Resistor Color Code
Decode the resistance value and tolerance of axial resistors using the standard electronic color code system.
Voltage Drop Calculator
Calculate voltage drop in a wire run (Single Phase).
Frequently asked questions
How do I choose a tool from Electrical — Science?
Start with the quantity you need to solve for, then compare the required inputs and assumptions before entering values.
Are results in Electrical — Science guaranteed?
No. Read the formula, limitations and reference information on the individual calculator. Entered example rates are not current offers or professional advice.
Can I save a calculation from Electrical — Science?
The calculator pages support browser-local project and share controls. Shared links and exported files may contain your inputs.