Insert the current in Amps (A) and the time in hours that the current was flowing for, and then click on Calculate to obtain milliampere-hours (mAh):

Current: A

Duration: Hours

Result: mAh

The formula is (A)*(h)*1000 =(mAh).
For example, if you have a current of 3 A running for 5 hours, the number of mAh is 3A*5h*1000 = 15000mAh.

To convert mAh to A you need to know the duration in hours that the current was flowing for. Insert the mAh below, then insert the time duration in hours and then click on Calculate to obtain Amps:

mAh: mAh

Duration: Hours

Result: A

The formula is (A)=(mAh)/((h)*1000).
For example, if you have 15000mAh running for 5 hours, the current in Amps is 15000mAh/(5h*1000) = 3A.

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