To convert amps to kVA (kilovolt-amperes), you can use the formula:
\[
kVA = \frac{{\text{{Voltage (V)} \times \text{{Current (A)}}}}}{{1000}}
\]
For example, if you are working with a 230V system (common in many countries), the calculation would look like:
\[
kVA = \frac{{230 \, \text{V} \times 20 \, \text{A}}}{1000} = 4.6 \, \text{kVA}
\]
If you're using a different voltage, just replace the 230V with the appropriate value.
For a 120V system, for instance:
\[
kVA = \frac{{120 \, \text{V} \times 20 \, \text{A}}}{1000} = 2.4 \, \text{kVA}
\]
So, it depends on the voltage you're using.