Is 1L enough to do a complete brake fluid flush?

I have a pressure bleeder. I just can't remember how much I used last time since it was a good 3 years ago. Its time to do it again now and I don't want to end up ordering too much and have another bottle on my shelf for 3 years.

Thanks!

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k