501 mAh Is How Many Wh?
Quick Answer: 501 mAh = 1.8537 Wh (at 3.7V)
Popular mAh to Wh Conversions
See Also
- 1 mAh to Wh — 0.0037 Wh
- 101 mAh to Wh — 0.3737 Wh
- 201 mAh to Wh — 0.7437 Wh
- 301 mAh to Wh — 1.1137 Wh
- 401 mAh to Wh — 1.4837 Wh
- 601 mAh to Wh — 2.2237 Wh
- 701 mAh to Wh — 2.5937 Wh
- 801 mAh to Wh — 2.9637 Wh
- 901 mAh to Wh — 3.3337 Wh
- 1,001 mAh to Wh — 3.7037 Wh
- 1,101 mAh to Wh — 4.0737 Wh
- 1,201 mAh to Wh — 4.4437 Wh
- 1,301 mAh to Wh — 4.8137 Wh
- 1,401 mAh to Wh — 5.1837 Wh
- 1,501 mAh to Wh — 5.5537 Wh
Frequently Asked Questions
How many Wh is 501 mAh?
501 mAh equals 1.8537 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 501 mAh to Wh?
Multiply 501 by the battery voltage, then divide by 1,000. At 3.7V: 501 × 3.7 / 1,000 = 1.8537 Wh.
Is 501 mAh allowed on a plane?
At 3.7V, 501 mAh = 1.8537 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
