How many zeros are there in 3 billion?

Answer 1

In English speaking countries there are 9 zeros in three billion.

3,000,000,000

In other countries there may be 12 zeros in three billion.

3,000,000,000,000

In England, an English speaking country, a billion = one million, million (12 zeros).

6 zeros is a million, 7 zeros is ten million, 8 zeros is a hundred million,

9 zeros is a thousand million, 10 zeros is ten thousand million,

11 zeros is a hundred thousand million. 12 zeros is a million million = a BILLION.

In North American usage a billion = a thousand, million. (9 zeros).
Nine, if you write it as 3,000,000,000 .

Two, if you write it as 3.0 x 109 .