Power Consumption Calculations Using Standard Electrical Formulas
| TO DETERMINE: | SINGLE-PHASE | THREE-PHASE | DIRECT CURRENT |
| KVA | I x E 1000 | I x E x 1.73 1000 | -------- |
| Kilowatts | I x E x PF 1000 | I x E x 1.73 x PF 1000 | I x E 1000 |
| Horsepower | I x E x %EFF x PF 746 | I x E x 1.732 x %EFF x PF 746 | I x E x %EFF 746 |
| Amperes (when HP is known) | HP x 746 E x %EFF x PF | HP x 746 1.73 x E x %EFF x PF | HP x 746 E x %EFF |
| Amperes (when kW is known) | KW x 1000 E x PF | KW x 1000 1.73 x E x PF | KW x 1000 E |
| Amperes (when KVA is known) | KVA x 1000 E | KVA x 1000 1.73 x E | -------- |