// multi-utility computation suite · offline · instant · precise
┌──────────────────────────┐
│ [c] calcalyst_ │
│ computation suite │
└──────────────────────────┘
// select a module to initialize
/ search↵ open firstesc close
// adsenseEMPTY_LEADER_SLOT728×90
// adsenseMOBILE_ANCHOR_SLOT320×50
// keyboard_shortcuts
/focus search
↑↓navigate module list
Enter
open first result from search
open highlighted
compute when module is open
compute when focused in a field
Escclose module · clear selection
⌫
eng.ohms-law Calculator
Applies Ohm's law and power equations to calculate voltage, current, resistance, and power in a DC circuit from any two known quantities. Ohm's Law (V = IR) combined with P = VI gives four power equations — P = I²R, P = V²/R, P = VI, P = V·I.
Inputs
V
Electric potential difference (V). Drives current through a circuit. Household: 120 V (US) or 230 V (EU/UK).
I
Rate of charge flow (A). I = V/R. Above ~100 mA through the body can be lethal. Fuses protect against overcurrent.
R
Opposition to current flow (Ω). V = IR. Resistors in series add; in parallel their reciprocals add.
T
Duration of the process. Make sure units match the rate inputs (seconds, minutes, or hours).
Results
power (W)
Reference formula or conversion factor shown for context.
energy (Wh)
Sample size or count used in the calculation.
R = V/I
Reference formula or conversion factor shown for context.
I = V/R
Reference formula or conversion factor shown for context.
kWh
Reference formula or conversion factor shown for context.
Ohms law
Reference formula or conversion factor shown for context.