In this article I will show you how to convert 15 millions into billions. Throughout the explanation below I might also call it 15 million to billion. They are the same thing!

## How to Convert Millions to Billions

A million is smaller than a billion. I know that a million is smaller than a billion because of something called conversion factors.

Put very simply, a conversion factor is a number that can be used to change one set of units to another, by multiplying or dividing it. So when we need to convert 15 millions into billions, we use a conversion factor to get the answer.

The conversion factor for million to billion is:

Now that we know what the conversion factor is, we can easily calculate the conversion of 15 million to billion by multiplying `0.001`

by the number of millions we have, which is 15.

**So, the answer to the question "what is 15 millions in billions?" is 0.015 billion.**

## Millions to Billions Conversion Table

Below is a sample conversion table for million to billion:

Millions (million) | Billions (billion) |
---|---|

0.01 | 0 |

0.1 | 0 |

1 | 0 |

2 | 0 |

3 | 0 |

5 | 0.01 |

10 | 0.01 |

20 | 0.02 |

50 | 0.05 |

100 | 0.1 |

1000 | 1 |

## Best Conversion Unit for 15 million

Sometimes when you work with conversions from one unit to another, the numbers can get a little confusing. Especially when dealing with really large numbers.

I've also calculated what the best unit of measurement is for 15 million.

To determine which unit is best, I decided to define that as being the unit of measurement which is as low as possible, without going below 1. Smaller numbers are more easily understood and can make it easier for you to understand the measurement.

**The best unit of measurement I have found for 15 million is crores and the amount is 1.5 crore.**