1/1000 as a Decimal
The fraction 1/1000 written as a decimal.
1/1000 as a decimal
0.001
= 0.1% · terminating decimal
How it works
To turn a fraction into a decimal, divide the numerator by the denominator: 1 ÷ 1000 = 0.001.
Because 1000's only prime factors are 2 and 5, the division ends cleanly, so 1/1000 is a terminating decimal.
Convert another number
The fraction calculator adds, subtracts, multiplies, divides and simplifies any fractions, and shows each result as a decimal too.
Related fractions
Frequently asked questions
What is 1/1000 as a decimal?+
1/1000 as a decimal is 0.001. It is a terminating decimal, found by dividing 1 by 1000.
How do you turn 1/1000 into a decimal?+
Divide the numerator by the denominator: 1 ÷ 1000 = 0.001. A fraction gives a terminating decimal when the denominator's only prime factors are 2 and 5, and a repeating decimal otherwise.