✳ FREE CALCULATOR
Letterbox and pillarbox calculator
The inverse of cropping: instead of cutting the frame down, fit all of it inside a target shape and add bars. Shows the exact bar thickness and the scaled content size.
- Bar type
- letterbox (bars top and bottom)
- Scaled content
- 1080 × 608
- Bar thickness
- 656 px top and bottom
- Content fills
- 31.6% of the canvas
Cropping instead would fill 100% but cut the edges off. Neither is automatically better.
Calculated as: scale = min(canvasW ÷ width, canvasH ÷ height); bar = (canvas − scaled) ÷ 2
What this assumes
- Assumes the content is centred in the canvas.
- Bars encoded into the file are permanent; a player adding its own bars is a different thing entirely.
Koldflux works these numbers out for you when it exports - the calculators exist because our own pipeline needed them first.
Automate this in Koldflux