Million & Billion Converter
Convert between million and billion values with currency formatting, short M/B notation and scientific notation.
Enter a value then choose whether you are starting from million or billion. Results update instantly.
Tip: every 1,000 million make 1 billion. Use this converter whenever you need to switch between the two scales.
Understanding the difference between million and billion
The words million and billion are both used to describe very large numbers, but they are not even close in size. A million is one thousand thousand: 1,000,000. A billion is one thousand million: 1,000,000,000.
How to convert million to billion
To convert a value from million to billion, divide by 1,000. You are simply moving the decimal point three places to the left.
- 1 million ÷ 1,000 = 0.001 billion
- 250 million ÷ 1,000 = 0.25 billion
- 7,500 million ÷ 1,000 = 7.5 billion
How to convert billion to million
To go from billion back down to million, multiply by 1,000. This moves the decimal point three places to the right.
- 0.5 billion × 1,000 = 500 million
- 1 billion × 1,000 = 1,000 million
- 2.3 billion × 1,000 = 2,300 million
How many zeros are in a million and a billion?
Counting zeros is a quick way to understand how big these numbers really are. The table below summarises the most common large number names.
| Number name | Value | Digits | Zeros |
|---|---|---|---|
| Thousand | 1,000 | 4 | 3 |
| Million | 1,000,000 | 7 | 6 |
| Billion | 1,000,000,000 | 10 | 9 |
Million to billion charts and real-world context
Charts make it easier to visualise how values grow as you move from million into the billion range. The first chart shows common amounts in million and their equivalent in billion.
| Million (M) | Billion (B) |
|---|---|
| 1 M | 0.001 B |
| 10 M | 0.01 B |
| 25 M | 0.025 B |
| 50 M | 0.05 B |
| 100 M | 0.1 B |
| 250 M | 0.25 B |
| 500 M | 0.5 B |
| 1,000 M | 1 B |
| Billion (B) | Million (M) |
|---|---|
| 0.1 B | 100 M |
| 0.25 B | 250 M |
| 0.5 B | 500 M |
| 1 B | 1,000 M |
| 2 B | 2,000 M |
| 5 B | 5,000 M |
| 10 B | 10,000 M |
What does a billion look like in time?
One billion is so large that it becomes easier to understand when converted into time. One million seconds is a little under 12 days. One billion seconds is more than 31 years. That comparison alone shows how far apart the two numbers really are.
When should you use this converter?
- Comparing company valuations or market capitalisations quoted in different scales (M vs B).
- Understanding national budgets, deficit figures or public spending plans.
- Explaining statistics in news articles or presentations in a way that feels concrete and memorable.
- Checking whether a figure has been mis-typed as million instead of billion or the other way round.
The Million & Billion Converter on this page is built to be fast and distraction-free. Type a number, pick your scale and read the result in whichever notation makes the most sense for your audience.
Practical examples of million–billion conversions
Imagine a company reports annual revenue of 750 million in one report and 0.75 billion in another. The numbers look different at first glance, but this converter confirms they are exactly the same size. Being able to switch between million and billion helps you spot inconsistent reporting and avoid mistakes.
You can also use the tool when reading about population or social media statistics. For example, if a platform has 2.3 billion users, that equals 2,300 million users. Converting into the scale you are most comfortable with makes these huge values easier to understand.
For financial planning, the converter is useful when you build long-term projections. Start with smaller figures in million, then move into the billion range as your scenarios grow. Because the page shows both short notation and scientific notation, it works well whether you are preparing a high-level presentation or a technical report.