How heavy is a javelin?
The men's javelin weighs 800 g and the women's 600 g. U18 boys throw 700 g and U18 girls 500 g.
| Level | Men / boys | Women / girls |
|---|---|---|
| Senior | 800 g | 600 g |
| U20 | 800 g | 600 g |
| U18 | 700 g | 500 g |
In US high schools
Most US states do not hold the javelin in high school meets. Where they do, boys throw the 800 g and girls the 600 g javelin.
Sources: World Athletics Book of Rules: Competition and Technical Rules. Updated 2026-10-31.