700 mAh Is How Many Wh?

Quick Answer: 700 mAh = 2.59 Wh (at 3.7V)

Milliamp-hours
=
Watt-hours
Auto-fills voltage
Nominal battery voltage
Conversion Result
700 mAh = 2.59 Wh (at 3.7V)

At 3.7V nominal voltage

700 mAh = 2.59 Wh (at 3.7V)

Step-by-step:

  1. Formula: Wh = mAh × V / 1,000
  2. 700 × 3.7 / 1,000 = 2.59 Wh

Similar mAh to Wh Conversions

Values close to 700 mAh (at 3.7V Li-ion):

mAh Wh (at 3.7V)
200 mAh 0.74 Wh
300 mAh 1.11 Wh
400 mAh 1.48 Wh
500 mAh 1.85 Wh
600 mAh 2.22 Wh
700 mAh 2.59 Wh
800 mAh 2.96 Wh
900 mAh 3.33 Wh
1,000 mAh 3.7 Wh
1,100 mAh 4.07 Wh
1,200 mAh 4.44 Wh

See Also

Frequently Asked Questions

How many Wh is 700 mAh?

700 mAh equals 2.59 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 700 mAh to Wh?

Multiply 700 by the battery voltage, then divide by 1,000. At 3.7V: 700 × 3.7 / 1,000 = 2.59 Wh.

Is 700 mAh allowed on a plane?

At 3.7V, 700 mAh = 2.59 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