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.
Related Posts

Amps To Volts Calculator
Instantly convert amps to volts using our free calculator. Choose single or three-phase systems and input power to get accurate voltage values online.

Watts To KVA Calculator
Use this free Watts to kVA Calculator to convert real power (watts) into apparent power (kVA) for AC circuits. Fast, accurate tool with formula, table, and examples.

current to energy calculator
Convert electrical current (A) to energy (Wh or kWh) using 𝐸 = 𝐼×𝑉×t, where I is current, V is voltage, and t is time.

No-load voltage calculator
Calculate the no-load (open circuit) voltage of generators, transformers, or other sources using EMF equations, winding data, and test parameters.

Norton current calculator
Calculate Norton equivalent current from short-circuit analysis, load removal tests, or Thevenin parameters for DC and AC circuits.

frequency to voltage calculator
Convert frequency (Hz) to voltage using the sensor or circuit’s sensitivity factor. Ideal for F/V converters, signal processing, and instrumentation.
