Thousand to Millions (k to M)
1 thousand equals 0.001 millions exactly.
How to convert thousand to millions
To convert thousand to millions, multiply the number of thousand by 0.001. This factor is exact. To go the other way, multiply millions by 1,000.
millions = thousand × 0.001
Example: 10 thousand = 0.01 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
Thousand (k)
One thousand (10³).
Thousand traces back through Middle English thousend to Old English þūsend and a Proto-Germanic form, and it has close relatives across the Germanic languages: German tausend, Dutch duizend, Swedish tusen, and Icelandic þúsund. Cognates also appear in Slavic and Baltic languages, among them Polish tysiąc and Lithuanian tūkstantis. Learned English vocabulary adds chiliad, a collective for a thousand, and millennium.
Its Roman numeral is M, and its scientific shorthand is the SI prefix kilo-, standing for 10³. The word has not always meant 1,000. In Old Norse counting, which grouped numbers in twelves of tens, a thousand meant 1,200. At ordinary scales, a thousand seconds is about 16.7 minutes, and a thousand days is about 2.7 years.
1 thousand = 1,000 pieces (exactly).
Sources: Wiktionary: thousand; Wikipedia: Long hundred; BIPM SI Brochure, 9th edition (2019)
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 thousand (reverse)
- Thousand to pieces
- Thousand to dozens
- Thousand to lakhs
- Thousand to crores
- Thousand to billions (short scale)
- Thousand to pairs
- Thousand to hundred
- Thousand to gross
- Thousand to trillions (short scale)
- Thousand to score
- 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
- Trillions (short scale) to millions
- Score to millions
- Half dozens to millions
- Quadrillions to millions
See all counting & quantity units.