C-Rate Calculator

Calculate the safe discharge current of a battery based on its C-rating.

Capacity Unit

mAh Ah

Battery Capacity

C-Rating The discharge rate rating of the battery.

Continuous Current (Amps)

Formula

Amps = Capacity(Ah) × C-Rating

Features

Determine the maximum safe continuous discharge current for your battery.
Supports both mAh and Ah capacity inputs.
Essential for drone building and high-power electronics.

How to Use

Select the battery capacity unit (mAh or Ah).
Enter the battery's capacity value.
Enter the C-Rating found on the battery label.
Click "Calculate" to see the maximum safe Amps.