# weight unit

URL: https://blockspace.wiki/glossary/weight-unit/

The unit of the block limit (BIP 141): every non-witness byte costs 4 WU and every witness byte 1 WU, so weight = stripped size × 3 + total size. A block may hold 4,000,000 WU.

Sources:

- block.space docs: data types · https://block.space/docs/datatypes
- Blockspace Value Theory · https://block.space/docs/bvt

Updated: 2026-10-20