3,111 mAh Is How Many Wh?

Quick Answer: 3,111 mAh = 11.5107 Wh (at 3.7V)

Milliamp-hours
=
Watt-hours
Auto-fills voltage
Nominal battery voltage
Conversion Result
3,111 mAh = 11.5107 Wh (at 3.7V)

At 3.7V nominal voltage

3,111 mAh = 11.5107 Wh (at 3.7V)

Step-by-step:

  1. Formula: Wh = mAh × V / 1,000
  2. 3,111 × 3.7 / 1,000 = 11.5107 Wh

Similar mAh to Wh Conversions

Values close to 3,111 mAh (at 3.7V Li-ion):

mAh Wh (at 3.7V)
611 mAh 2.2607 Wh
1,111 mAh 4.1107 Wh
1,611 mAh 5.9607 Wh
2,111 mAh 7.8107 Wh
2,611 mAh 9.6607 Wh
3,111 mAh 11.5107 Wh
3,611 mAh 13.3607 Wh
4,111 mAh 15.2107 Wh
4,611 mAh 17.0607 Wh
5,111 mAh 18.9107 Wh
5,611 mAh 20.7607 Wh

See Also

Frequently Asked Questions

How many Wh is 3,111 mAh?

3,111 mAh equals 11.5107 Wh at 3.7V (Li-ion nominal voltage). The exact Wh depends on the battery voltage: Wh = mAh × V / 1,000.

How do I convert 3,111 mAh to Wh?

Multiply 3,111 by the battery voltage, then divide by 1,000. At 3.7V: 3,111 × 3.7 / 1,000 = 11.5107 Wh.

Is 3,111 mAh allowed on a plane?

At 3.7V, 3,111 mAh = 11.5107 Wh. Airlines allow lithium batteries up to 100 Wh in carry-on luggage. Batteries between 100–160 Wh require airline approval. Batteries over 160 Wh are prohibited on passenger aircraft.

Formula: Wh = mAh × V / 1,000. Results assume nominal battery voltage.

Conversion factors verified against NIST, BIPM Based on SI definitions (BIPM). Last reviewed: March 2026
Tiago Fernandes Reviewed by Tiago Fernandes