How Many Amps Is 11.5 kW at 12V?

At 12V, 11.5 kW pulls approximately 958.33 amps on DC (PF 0.85). This is the case typical for solar arrays, battery banks, and DC industrial equipment. Always verify against the equipment nameplate for actual install sizing.

11.5 kW at 12V, DC (PF 0.85)

958.33 Amps

11.5 kilowatts at 12V on DC ≈ 958.33 amps

AC Single Phase (PF 0.85)1,127.45 A

Try: 12kW at 12V 10kW at 12V 8kW at 12V 15kW at 12V

Volts

Amps (DC)

958.33

Formulas

DC: kW to Amps

I_(A) = 1000 × P_(kW) ÷ V_(V)

1000 × 11.5 ÷ 12 = 11,500 ÷ 12 = 958.33 A

AC Single Phase (PF = 0.85)

I_(A) = 1000 × P_(kW) ÷ (PF × V_(V))

11,500 ÷ (0.85 × 12) = 11,500 ÷ 10.2 = 1,127.45 A

Equipment & Circuit Sizing

Energy Cost

11.5 kW costs $1.96/hour at $0.17/kWh (rates last reviewed April 2026). See breakdown.

Power Factor Reference (DC)

How the line current for 11.5 kW at 12V changes with load power factor, on the same DC circuit basis the rest of the page uses. DC has no power factor; PF 1.0 represents resistive AC loads.

Load Type	PF	11.5 kW at 12V (DC)
Resistive (heaters, incandescent)	1	958.33 A
Fluorescent lamps	0.95	958.33 A
LED lighting	0.9	958.33 A
Synchronous motors	0.9	958.33 A
Typical mixed loads	0.85	958.33 A
Induction motors (full load)	0.8	958.33 A
Computers (without PFC)	0.65	958.33 A
Induction motors (no load)	0.35	958.33 A

AC Conversion Comparison

On DC, 11.5kW at 12V draws 958.33A. AC single-phase at PF 0.85 pulls 1,127.45A because reactive current is added on top of the real power.

Circuit Type	Formula	Result
DC	11,500 ÷ 12	958.33 A
AC Single Phase (PF 0.85)	11,500 ÷ (0.85 × 12)	1,127.45 A

Other kW Values at 12V

kW	DC Amps	AC 1-Phase PF 0.85
1.5 kW	125 A	147.06 A
2 kW	166.67 A	196.08 A
2.5 kW	208.33 A	245.1 A
3 kW	250 A	294.12 A
3.5 kW	291.67 A	343.14 A
4 kW	333.33 A	392.16 A
5 kW	416.67 A	490.2 A
6 kW	500 A	588.24 A
7.5 kW	625 A	735.29 A
8 kW	666.67 A	784.31 A
10 kW	833.33 A	980.39 A
12 kW	1,000 A	1,176.47 A
15 kW	1,250 A	1,470.59 A
18 kW	1,500 A	1,764.71 A
20 kW	1,666.67 A	1,960.78 A

Same kW, Other Voltages

Each destination page leads with the interpretation most common for that voltage, so the amps shown below use the same basis as the page you'd land on: single-phase for residential voltages, three-phase for commercial/industrial panel voltages, DC for low-voltage.

Related Calculations

bolt 11,500W to amps at 12V payments 11,500W running cost cable Wire size for 958.33A at 12V

Frequently Asked Questions

How many amps is 11.5 kW at 12V?expand_more

11.5 kW at 12V draws about 958.33 amps on DC. Alternate cases at the same voltage: 1,127.45A on AC single-phase.

What is the formula for kW to amps?expand_more

DC: Amps = (kW × 1000) ÷ Volts. AC single-phase: Amps = (kW × 1000) ÷ (Volts × PF). AC three-phase: Amps = (kW × 1000) ÷ (Volts_L-L × √3 × PF).

How many amps does a 11.5 kW EV charger draw at 12V?expand_more

At 12V, this is Level 1 territory (120V AC, single-phase, typically 12-16A). A 11.5 kW draw on a standard 120V household outlet is at or above the 1,440W NEC 210.19(A) continuous figure, which is why Level 1 EVSE ships at 1.4-1.9 kW and takes 20+ hours for a full charge. If you need 11.5 kW of charging, you want Level 2 on a 240V dedicated circuit, not 120V.

What size breaker would I need for 11.5 kW at 12V?expand_more

This is a sizing question, not a conversion question, and there is no single correct answer from a page like this. Breaker selection depends on the equipment nameplate FLA, whether the load is continuous (NEC 210.19(A) applies the 125% continuous-load rule), the conductor ampacity and temperature rating, any NEC 430/440 motor or HVAC provisions, and local code interpretation. Use the nameplate and a licensed electrician for the real install value; use this page only for the current-draw estimate that feeds into that process.

Is 11.5 kW single-phase or three-phase?expand_more

11.5 kW is available in both, but three-phase is more common for commercial HVAC, rooftop units, and motors once you reach this range.

This calculator provides estimates for reference purposes only. Always consult a licensed electrician and verify compliance with the National Electrical Code (NEC) and local electrical codes before performing any electrical work.