Reams to Sheets Converter
| Reams | Sheets | What you are holding |
|---|---|---|
| 1 | 500 | the standard ream |
| 2 | 1000 | the two-ream pack |
| 5 | 2500 | the copier carton |
| 10 | 5000 | the office case |
A ream is five hundred sheets - the packet every office stack, school supply list and print quote counts in. Twenty-five sheets make a quire, twenty quires make the ream, and ten reams fill the copier carton. Type either number and the converter lands the other.
The count hides the paper trade's oldest quirks: the short ream of 480 sheets that older printing contracts used, and the basis-weight system that makes a ream of 20 lb paper weigh five pounds even though the label refers to a different sheet size entirely. The FAQs settle both, plus why copy paper labeled 20 lb and 75 gsm are the same sheet in two dialects.
How to use
- Type the reams from a supply order or print quote - sheets appear instantly, or run the reverse for the odd carton at the back of the storeroom.
- Read the table for the buying ladder: five reams is the standard copier carton, ten the case.
- Weighing paper? Convert reams to sheets here first, then let the basis-weight FAQ explain what the pound rating actually measures.
Frequently asked questions
How many sheets are in a ream?
Five hundred - twenty quires of twenty-five sheets each. That is the modern standardized ream used by every office-supply listing and print quote. Watch for the short ream: 480 sheets, a remnant of older trade practice that survives in some printing and specialty art papers, which is why a count that lands 20 sheets shy usually means somebody sold you a short ream, not a miscount.
What is a quire?
Twenty-five sheets - one twentieth of a ream. It is the stationer's small change, still used for invitation stock, blotting paper and craft sheets, and the reason a 'couple of quires' is a phrase older stationers reach for before they reach for a percentage of a ream. Ten quires is half a ream; the ladder is perfectly regular all the way down.
Why does a ream of 20 lb paper weigh 5 pounds?
Because basis weight is rated on the paper trade's basic size, not your sheet: 20 lb bond means 500 sheets of 17-by-22-inch paper - four letter pages each - weigh twenty pounds. Cut to letter size, that same stock yields a 500-sheet ream weighing exactly five pounds. The number on the package describes an ancestor sheet, which is why heavier feeling paper and bigger numbers track but never match across brands.
Is 20 lb paper the same as 75 gsm?
Effectively yes - 75 grams per square meter converts to about 20 pounds on the bond scale, and most copy paper packaging prints both. The gsm system measures any sheet directly; the pound system only makes sense after you ask which basic size it is rated on. For cross-checking a quote, the gsm number is the honest one - our GSM converter translates both directions.
Where did the ream come from?
From the Arabic rizma, a bundle, carried through old French reame into the paper houses of medieval Europe - where counts varied by mill and city until trade standardization settled on 480 and finally 500. The quire (from Latin quaterni, four double sheets folded) is older still, a survivor of the hand-press era when paper was made and counted sheet by sheet in the vat.