Ohm's Law Calculator
Enter any two known electrical values—Voltage (V), Current (I), Resistance (R), or Power (P)—to calculate the remaining two with formulas.
Explore foundational physics formulas with instant equation breakdowns. Our Physics Calculators help SEE and NEB Science students verify numerical problems in electricity and mechanics.
Enter any two known electrical values—Voltage (V), Current (I), Resistance (R), or Power (P)—to calculate the remaining two with formulas.
Direct-current electricity and Joule's law of heating are core topics in Class 10 Science & Technology and NEB Class 11/12 Physics. Our Ohm's Law Calculator allows you to input any two known circuit parameters—Voltage (V), Current (I), Resistance (R), or Electrical Power (P)—and immediately view the derived equations and SI unit outputs. For multi-step trigonometric or logarithmic physics calculations, pair this with our Scientific Calculator.
Full-featured online scientific calculator with DEG/RAD trigonometry, logarithms, powers, factorials, parentheses, and calculation history.
Compute molecular weight (g/mol), atom counts, and mass percentage composition for compounds like H2O, CaCO3, H2SO4, and Al2(SO4)3.
Simplify ratios, generate equivalent ratios, divide an amount into ratio shares, and solve missing value proportions (A:B = C:x).
Calculate marks percentage, X% of Y, what percentage X is of Y, and percentage increase or decrease in one tool.