The weight of javelins varies according to different types and uses.
In general, javelins weigh between 800 grams and 1000 grams. However, the rules of competition set by the International Association of Athletics Federations stipulate that the weight of the adult men's javelin in an official competition is 080 kg, the weight of an adult women's javelin is 060 kg.
In addition, lighter or heavier javelins exist, but these are not common. The weight of the javelin is mainly determined by the physical fitness and skill level of the athlete and the type and use of the javelin. When choosing a javelin, athletes choose the weight and type that best suits them based on their physical condition and skill level.
For example, the weight of a spear thrown by an ancient Roman hoplite was about 15 to 2 kg, its spear has a long iron tip attached to a wooden handle and can be thrown up to 30 meters.
In addition, the specifications of modern javelins vary according to gender and age group. Men's javelins usually weigh 800 grams and are between 260-270 centimeters in length;Women's javelins usually weigh 600 grams and are between 220-230 centimeters in length.
Lighter javelins, such as those used by children or amateurs, may weigh as little as 300 to 500 grams. And heavier javelins, such as the ancient Roman throwing spears mentioned above, could reach 3 kg or even heavier.
In general, there is no fixed standard for the weight of a javelin, it will be determined according to the user's needs and physical fitness, as well as the type and purpose of the javelin.