How to convert billions to trillions
Formula: tn = bn × 0.001
Worked example: 1.5 bn → 1.5 × 0.001 = 0.0015 tn
Divide billions by 1,000 to get trillions. A debt of 34,000 billion dollars is a debt of 34 trillion.
Billions to trillions conversion chart
| Billions (bn) | Trillions (tn) |
|---|---|
| 0.1 bn | 0.0001 tn |
| 0.25 bn | 0.00025 tn |
| 0.5 bn | 0.0005 tn |
| 1 bn | 0.001 tn |
| 1.5 bn | 0.0015 tn |
| 2 bn | 0.002 tn |
| 2.5 bn | 0.0025 tn |
| 3 bn | 0.003 tn |
| 5 bn | 0.005 tn |
| 7.5 bn | 0.0075 tn |
| 10 bn | 0.01 tn |
| 15 bn | 0.015 tn |
| 20 bn | 0.02 tn |
| 25 bn | 0.025 tn |
| 50 bn | 0.05 tn |
| 75 bn | 0.075 tn |
| 100 bn | 0.1 tn |
| 250 bn | 0.25 tn |
| 500 bn | 0.5 tn |
| 1,000 bn | 1 tn |
What is a billion?
A billion is 1,000,000,000, or 10⁹, a thousand millions. This short-scale meaning is used in the US and, since 1974, in UK official usage. In French, German, Spanish and many other languages the same number is a milliard, and their billion means 10¹².
What is a trillion?
A trillion is 1,000,000,000,000, or 10¹², a thousand billions. National debts and GDP of large economies are measured in trillions: US GDP passed 25 trillion dollars in 2022. Several European languages call this number a billion.