Office & Stationery
Office supplies are the sneakiest weights in the game, because paper hides its mass in numbers. One sheet is nothing. Five hundred sheets is 2.5 kilograms, and suddenly the box you just lifted makes sense.
The nice part: paper weights are calculable, not guessable. Grammage times area times sheet count gives you the answer exactly — this is the one category where you can do the math instead of trusting your gut.
Lightest: Sheet of A4 paper (5 g) · Heaviest: Ream of A4 paper (500 sheets) (2.5 kg)
| Object | Weight | Imperial |
|---|---|---|
| Sheet of A4 paper | 5 g | 0.18 oz |
| Stapler | 250 g | 8.8 oz |
| Ream of A4 paper (500 sheets) | 2.5 kg | 5.5 lb |
Office & Stationery: frequently asked questions
How much does a ream of A4 paper weigh?
About 2.5 kg. You can calculate it exactly: an A4 sheet is 0.06237 m², so at 80 g/m² one sheet is 4.99 grams, and 500 sheets come to 2,495 grams. No guessing required.
How much does a single sheet of paper weigh?
A standard A4 sheet at 80 g/m² weighs about 5 grams — roughly a badminton shuttlecock. It's one of the lightest objects in the whole catalog, and yet 500 of them outweigh a cast-iron skillet.
What does 80 g/m² actually mean?
It's the grammage: one square metre of that paper weighs 80 grams. Since A4 is exactly 1/16 of a square metre, the maths falls out easily — which makes paper the only category in this game you can solve with arithmetic instead of intuition.
What are the lightest and heaviest office & stationery objects in the game?
The lightest is Sheet of A4 paper at 5 g (0.18 oz), the heaviest is Ream of A4 paper (500 sheets) at 2.5 kg (5.5 lb).
Five random office & stationery objects, as often as you like. Or try today's Daily Challenge across all categories.