Where does this come from, and can I check it?

The Laws set its length at 280 to 300 millimetres and its weight at 410 to 460 grams. The figure is taken from World Rugby, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

Is this really a sports fact?

Yes. It sits on the Sports shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

What else can I read about it?

The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.

Mondo Knows Facts

A rugby ball is an oval fixed by rule

The Laws set its length at 280 to 300 millimetres and its weight at 410 to 460 grams The ball is made from four panels and is longer and lighter than the leather balls of a century ago. Its shape is a legacy of the inflated pig's bladder that the first players used. A modern ball is designed to be thrown and kicked with either foot. It sits in Mondo's sports collection, one of 200 facts that each trace back to the reference below.

Where this comes from

World Rugby

Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.

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Sports trivia

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Tags: rugby, equipment, laws

A rugby ball is an oval fixed by rule: the short answers

Where does this come from, and can I check it?: The Laws set its length at 280 to 300 millimetres and its weight at 410 to 460 grams. The figure is taken from World Rugby, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a sports fact?: Yes. It sits on the Sports shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.