21 milliliters in liters

Result

The conversion result is: 21 milliliters is equivalent to 0.021 liters.^[1]

Conversion formula
How to convert 21 milliliters to liters?

We know (by definition) that: 1 ml ≈ 0.001 liter.

We can set up a proportion to solve for the number of liters.

1 ml / 21 ml ≈ 0.001 liter / x liter

Now, we cross multiply to solve for our unknown x:

x liter ≈ (21 ml / 1 ml) * 0.001 liter → x liter ≈ 0.021 liter

Conclusion:

21 ml ≈ 0.021 liter

Conversion in the opposite direction

The inverse of the conversion factor is that 1 liter is equal to 47.6190476190476 times 21 milliliters.

It can also be expressed as: 21 milliliters is equal to 1 / 47.6190476190476 liters.

Approximation

An approximate numerical result would be: twenty-one milliliters is about zero point zero two liters, or alternatively, a liter is about forty-seven point six one times twenty-one milliliters.