A men's javelin weighs 800 grams and measures 2.6 to 2.7 meters. A women's javelin weighs 600 grams, with a length of 2.2 to 2.3 meters. These specifications maintain fairness in all athletic competitions.

TL;DR

In professional track and field, adult men throw a javelin weighing exactly 800g, whereas adult women throw a lighter 600g version. These specifications are strictly mandated by World Athletics to standardise performances across global competitions, including the Olympic Games and the decathlon. - Use 800g.

What are the official weight standards for competition?

An official javelin must meet strict weight and measurement criteria to be used in international competitions or multi-discipline events like the decathlon. Men use a 800 gram javelin, which is the standard for both standalone throwing events and the second day of decathlon competitions. Women use a 600 gram javelin for all major championships. For junior and youth categories, weights are lower to accommodate developing athletes, often ranging from 400 to 700 grams depending on age and gender.

The weight of the javelin is a critical variable in the World. For athletes wearing specialized track and field jerseys, readers should use the answer as practical guidance, then check the latest rules, availability, or product details before acting. That keeps the decision grounded in the current situation rather than a generic answer that may miss timing, league, or format changes. If the question involves equipment, venues, schedules, or eligibility, confirm the details at the point of purchase or registration.