Key

kVAKilo Volt Amperes

kWKiloWatts

IAmpere

EVolts

PEPower Factor

%EFFPercent Efficiency

HPHorse Power

Converting kW to kVA OR kVA to kw

Select Option Below Input kW = Results
kW to kVa
kVA to kW

Power Requirement Calculator

Phase Volts Required (V) Amperes (I) Power Factor = Power (kW)
1
3
.8
1.0

Converting kW to HP

kW = HP

What size genset is needed to start a 3 phase electric motor Direct on Line (DOL) start

HP of Motor = Generator kVA Required

Calculating Amperes (when you know kVA)

Phase Generator (kVA) Volts Required = Ampere (I)
1
2
3

Diesel Generator Fuel Consumption Calculator

Generator Size (kW) 1/4 Load (gal/hr) 1/2 Load (gal/hr) 3/4 Load (gal/hr) Full Load (gal/hr)
20 0.6 0.9 1.3 1.6
30 1.3 1.8 2.4 2.9
40 1.6 2.3 3.2 4.0
60 1.8 2.9 3.8 4.8
75 2.4 3.4 4.6 6.1
100 2.6 4.1 5.8 7.4
125 3.1 5.0 7.1 9.1
135 3.3 5.4 7.6 9.8
150 3.6 5.9 8.4 10.9
175 4.1 6.8 9.7 12.7
200 4.7 7.7 11.0 14.4
230 5.3 8.8 12.5 16.6
250 5.7 9.5 13.6 18.0
300 6.8 11.3 16.1 21.5
350 7.9 13.1 18.7 25.1
400 8.9 14.9 21.3 28.6
500 11.0 18.5 26.4 35.7
600 13.2 22.0 31.5 42.8
750 16.3 27.4 39.3 53.4
1000 21.6 36.4 52.1 71.1
1250 26.9 45.3 65.0 88.8
1500 32.2 54.3 77.8 106.5
1750 37.5 63.2 90.7 124.2
2000 42.8 72.2 103.5 141.9
2250 48.1 81.1 116.4 159.6

Simple Electrical Power Calculator

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
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