Common formulas
Units of measure
| Unit name | Unit symbol | Units of measure | Units of measure symbol |
|---|---|---|---|
| Voltage | V | Volts | V |
| Current | I | Amperes | A |
| Resistance | R | Ohms | Ω |
| Capacity | C | Ampere-hours | Ah |
| Time | t | Seconds | s |
| Temperature | T | Kelvin | K |
Voltage formulas
| V = I · R |
| V = P / I |
| V = P · R |
Current formulas
| I = P / V |
| I = V / R |
| I = P / R |
Resistance formulas
| R = V / I |
| R = V^2 / P |
| R = P / I^2 |
Capacity formulas
| C = I · t |
| I = C / t |
| t = C / I |
Power formulas
| P = R · I^2 |
| P = V · I |
| P = V^2 / R |
General conversions
| 1kW = 1000 W |
| 1 mili Volt = 1 / 1000 Volt |
| 1 mili Ampere = 1 / 1000 Ampere |
| 1 hour = 60 min |
| 1 hour = 3600 seconds |
Temperature conversions
| T[Fahrenheit] = T[Celsius] · 1,8 + 32 | |
| T[Celsius] = (T[Fahrenheit] − 32) · 0,56 |
