Millions to Pairs (M to pr)
1 million equals 500,000 pairs exactly.
How to convert millions to pairs
To convert millions to pairs, multiply the number of millions by 500,000. This factor is exact. To go the other way, multiply pairs by 0.000002.
pairs = millions × 500,000
Example: 10 millions = 5,000,000 pairs.
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
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)
Pair (pr)
Two items.
Pair comes from Old French paire, which grew out of Latin paria, the neuter plural of par, meaning equal. German Paar and Dutch paar are relatives of the same word. The core idea is two matching things taken together, as in a pair of shoes or gloves.
English also uses pair for single objects built from two connected parts. Scissors, spectacles, trousers, and jeans are plural-only nouns, so a counting word is needed: you say a pair of scissors or several pairs of jeans. That makes the unit slightly slippery. Six pairs of socks is 12 socks, but six pairs of scissors is only six objects. The word has other senses too, such as two people in a relationship or two cards of equal rank in poker, but as a quantity of loose items it is always two.
1 pair = 2 pieces (exactly).
Sources: Wiktionary: pair
Related conversions
- Pairs to millions (reverse)
- Millions to pieces
- Millions to dozens
- Millions to lakhs
- Millions to crores
- Millions to billions (short scale)
- Millions to hundred
- Millions to gross
- Millions to thousand
- Millions to trillions (short scale)
- Millions to score
- Millions to half dozens
- Millions to quadrillions
- Pieces to pairs
- Dozens to pairs
- Lakhs to pairs
- Crores to pairs
- Billions (short scale) to pairs
- Hundred to pairs
- Gross to pairs
- Thousand to pairs
- Trillions (short scale) to pairs
- Score to pairs
See all counting & quantity units.