Flexbox
Calculate Flexbox instantly with the exact formula and a worked example.
Flexbox
Elements
Container, px
Gap, px
Element width
288px
More about: Flexbox
What it calculates
The “Flexbox” calculator computes Element width in px from 3 parameters: elements, container, px, gap, px.
Standard IT calculations for developers and sysadmins.
Example calculation
With parameters Elements = 4, Container, px = 1,200, Gap, px = 16 the result is 288 px.
How to use
- Enter elements, container, px and gap, px — each field above is adjustable with a slider.
- Element width (px) is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
Related calculators
FAQ
How is Flexbox calculated?
The Flexbox calculator computes Element width (in px) from elements, container, px, gap, px. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Flexbox calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
More calculators in this category
Explore related free tools