What formula does this calculator use?
Single-phase amps equal VA divided by volts; balanced three phase also divides by √3.
Apparent power to current
VA to Amps Calculator
Convert volt-amperes to current for single-phase or balanced three-phase AC systems using operating voltage.
Interactive calculator
VA to Amps Calculator
Result
10.000 A
A = VA ÷ V
Live circuit diagram
VA to Amps Calculator visualized in real time
Values update as you use the calculator.
Input
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Circuit setting
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Calculated output
Enter values to see the live result
Quick answers
VA to Amps Calculator: quick answers
Get concise answers to the most common va to amps calculator questions before reviewing the formulas, examples, and detailed guidance below.
What is a practical example?
2300 VA at 230 V single phase equals 10 A.
What does VA measure?
Volt-amperes measure apparent AC power, the product of RMS voltage and current before power-factor conversion.
Formula
VA to amps formulas
Choose the formula that matches the electrical system and known values.
Single phase
A = VA ÷ V
Use RMS voltage.
Three phase
A = VA ÷ (√3 × V)
Use line-to-line voltage.
Inverse
VA = A × V
Three phase also multiplies by √3.
How to use
Calculate in five clear steps
Check every unit and use measured or nameplate values where possible.
- 1. Select the phase arrangement.
- 2. Enter apparent power in VA.
- 3. Enter operating voltage.
- 4. Review current in amps.
- 5. Apply protection and conductor rules separately.
Worked examples
Practical calculation examples
Examples make the formula and its assumptions easier to verify.
1,200 VA at 120 V single phase
10 A
2,300 VA at 230 V single phase
10 A
5,000 VA at 230 V single phase
21.74 A
6,928 VA at 400 V three phase
10 A
15,000 VA at 415 V three phase
20.87 A
25,000 VA at 480 V three phase
30.07 A
Accuracy
Common mistakes and limitations
The result is only as reliable as the selected formula and input data.
Conversion library
Explore all 44 electrical calculators
Continue from the VA to Amps Calculator to a dedicated conversion tool for watts, amps, volts, kW, kVA, energy, batteries, or circuit calculations. Each linked page includes its own formula, examples, and guidance.
FAQ
VA to amps questions
Direct answers to common calculation questions.
What formula does this calculator use?
Single-phase amps equal VA divided by volts; balanced three phase also divides by √3.
What is a practical example?
2300 VA at 230 V single phase equals 10 A.
What does VA measure?
Volt-amperes measure apparent AC power, the product of RMS voltage and current before power-factor conversion.
Does power factor matter?
No. VA already represents apparent power.
Are VA and watts the same?
Only at power factor 1; otherwise watts are lower than VA.
Can I enter decimal values?
Yes. Enter positive decimal values in the displayed units.
Can this size electrical equipment?
Use it for estimates, then verify duty, surge, derating, manufacturer data, and applicable codes.
Does efficiency affect the result?
Efficiency is separate from power factor and must be evaluated when comparing input and output power.
Why might measurements differ?
Voltage variation, harmonics, load changes, imbalance, and meter accuracy can affect field values.
Can I copy the answer?
Yes. Use the copy button below the result.
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