Reams to Millions (rm to M)
1 ream equals 0.0005 millions exactly.
How to convert reams to millions
To convert reams to millions, multiply the number of reams by 0.0005. This factor is exact. To go the other way, multiply millions by 2,000.
millions = reams × 0.0005
Example: 10 reams = 0.005 millions.
Large-number names differ around the world: this site uses the short scale (billion = 10⁹) by default, and lists the long-scale billion separately.
About these units
Ream (rm)
500 sheets of paper (20 quires), the standard retail package for printer paper. A short ream of 480 sheets survives for some specialty papers.
Ream comes from the Arabic rizmah, a bundle of paper, passing through Spanish resma and Old French reyme; the Moors introduced cotton papermaking to Spain. Its size has varied. The modern standard, 500 sheets or 20 quires of 25, is the ISO and DIN definition and what retail paper almost always means. A short ream of 480 sheets, 20 quires of 24, was formerly the British standard and survives for tissue, greaseproof, handmade, and blotting papers. J. S. Bach's Weimar manuscript paper was ordered by the 480-sheet ream.
Other versions include the 516-sheet printer's or perfect ream, the 504-sheet envelope-paper ream, and the 472-sheet mill ream for handmade paper, which was 18 quires of 24 good sheets plus two 20-sheet quires of damaged ones. In 1922 the UK set machine-made writing and printing paper at 500 sheets. ISO 4046-3:2002 defines a ream as a pack of 500 identical sheets and recommends another term, such as pack, for other counts.
1 ream = 500 pieces (exactly).
Sources: Wikipedia: Units of paper quantity
Million (M)
One million (10⁶).
Million comes from Italian. Old Italian milione was built from mille, a thousand, plus an augmentative ending, so it began as something like a big thousand. The name proved useful as a stem: by 1475 the French mathematician Jehan Adam was already building larger names from it, bymillion and trimillion, for 10¹² and 10¹⁸. The short and long scales agree on the million itself, 1,000,000 or 10⁶, and diverge only for the larger names. The SI prefix mega- stands for 10⁶.
Millions are hard to feel. Counting out a million items one by one is famously laborious, yet a million seconds lasts only about 11.57 days. A billion seconds, by contrast, is roughly 31.7 years.
1 million = 1,000,000 pieces (exactly).
Sources: Wikipedia: Million; Wikipedia: Names of large numbers; BIPM SI Brochure, 9th edition (2019)
Related conversions
- Millions to reams (reverse)
- Reams to pieces
- Reams to dozens
- Reams to lakhs
- Reams to crores
- Reams to billions (short scale)
- Pieces to millions
- Dozens to millions
- Lakhs to millions
- Crores to millions
- Billions (short scale) to millions
- Pairs to millions
- Hundred to millions
- Gross to millions
- Thousand to millions
- Trillions (short scale) to millions
- Score to millions
- Half dozens to millions
See all counting & quantity units.