Volt-Amps to Amps Calculator
Convert volt-amperes to current: I = VA / V on single-phase. Default 1800 VA at 120 V gives 15 A. Informational only.
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How to convert volt-amps to amps
- Enter VA and line voltage.
- Select single-phase or three-phase.
- Read amps. Apparent current implied by VA and V.
- Real power still needs PF elsewhere. Nothing is uploaded.
Volt-amps to amps
I = VA / V (with √3 on 3ph)
| Single-phase | I = VA / V |
|---|---|
| Three-phase | I = VA / (√3 V) |
| Default | 1800 VA / 120 V = 15 A |
| Apparent | Based on VA, not watts |
| Inverse | Amps to volt-amps page |
| Approval | Informational. Not NEC approval. |
Divide VA by V
1800 VA at 120 V gives 15 A on single-phase. Three-phase divides by √3 as well in the engine.
UPS sizing
UPS plates list VA. Dividing by outlet voltage estimates current draw for branch planning, not a substitute for code calculations.
Real kilowatts
Convert VA to kW with PF on VA to kW before comparing to mechanical load kW.
kVA path
Large gear may use kVA on kVA to amps instead of base VA.
Limits
Balanced AC snapshot.
The formula runs in this tab. CZNull does not receive the numbers.
Informational only. Not wiring, code, or manufacturer approval. See the disclaimer.
What amps match 1800 VA at 120 V?
15 A on single-phase. Divide 1800 by 120.
Is this RMS current?
Yes in the steady AC apparent model used here.
Do I need PF to get amps from VA?
No. PF links VA to real watts, not VA to amps.
Why pair with amps to volt-amps?
That page multiplies V×I; this page divides VA by V. They are inverses for the same phase choice.
Can I enter kVA instead of VA?
Use kVA to amps when the input is kilo-scaled. This form expects VA.