Amps to kVA Calculator
Easily convert amps to kVA using our free online calculator. Supports single-phase and three-phase circuits. Fast, accurate, and ideal for electrical calculations.

Quick Intro: Convert Amps to KVA
To convert amps to kVA, multiply the voltage by the current and divide by 1,000. For three-phase circuits, include a √3 multiplier. This amps to kVA calculator works for both single-phase and three-phase systems, making it ideal for power load planning, transformer sizing, and electrical system design.
Formula for KVA Calculation
- Single-Phase: kVA = (Volts × Amps) / 1000
- Three-Phase: kVA = (√3 × Volts × Amps) / 1000
Amps to KVA Calculator Overview
The Amps to kVA Calculator helps convert electrical current in amperes (A) into apparent power in kilovolt-amperes (kVA). This tool is useful for engineers, electricians, and students working with AC circuits. The conversion depends on voltage, current, and whether the system is single-phase or three-phase. For single-phase: kVA = (Volts × Amps) / 1000. For three-phase: kVA = (√3 × Volts × Amps) / 1000. This calculator simplifies sizing transformers, generators, and power supplies by delivering quick and accurate results tailored to your input.
Sample Amps to KVA Conversion Table
| Type | Amps (A) | Volts (V) | kVA |
|---|---|---|---|
| Single-Phase | 20 | 240 | 4.80 |
| Three-Phase | 30 | 415 | 21.56 |
Frequently Asked Questions - Amps to kVA Calculator:
What is a kVA?
kVA stands for kilovolt-ampere, a unit of apparent power.
How do you convert amps to kVA?
Multiply amps × voltage × √3 (for 3-phase) or × voltage (for single-phase), then divide by 1000.
What’s the formula for single-phase?
kVA = (Amps × Volts) / 1000.
What’s the formula for three-phase?
kVA = (√3 × Amps × Volts) / 1000.
Why is √3 used in 3-phase calculations?
√3 accounts for the phase difference between voltages in a 3-phase system.
Can this calculator handle both phases?
Yes, it supports both single-phase and 3-phase conversions.
What units are required for input?
You need to input current (Amps) and voltage (Volts).
Is this calculator accurate?
Yes, it uses industry-standard electrical formulas.
What is apparent power?
Apparent power is the product of current and voltage without considering power factor.
Do I need power factor for kVA?
No, power factor is not used when calculating apparent power in kVA.
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