USB-C Power Calculator

Check whether a USB-C charger and cable can provide enough wattage for a laptop, tablet, phone, or other device.

Check USB-C Power

Enter your device wattage, charger wattage, and cable rating to estimate whether the USB-C power chain is enough.

How it works

The usable wattage is the lowest limit in the chain: charger output and cable rating. A cable can bottleneck an otherwise powerful charger.