Free · Display dimensions
Exact 4:3 Rectangle Dimensions
Width divided by height is exactly 4/3. The captured rounded decimal coefficient is replaced with this exact fraction in both inverse relationships.
- Formula & worked example
- Private in your browser
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Calculator inputs
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How to use this calculator
- Enter the known values in the units shown. Results update as you type.
- Where results are editable, change one to solve backwards. Lock a value to hold it fixed.
- Use the worked example to check the method. Reset restores the starting fields.
Private by default
Inputs and results stay in this browser tab. Bookify does not upload or store the values you enter.
Formula and method
Worked example: height = 300. See the assumptions for units and model limits.
1.33333333333 = width / height
Worked example
Enter these known values and leave the other values blank.
- Width
- 400
- Height
- 300
Assumptions and limitations
- Width divided by height is exactly 4/3. The captured rounded decimal coefficient is replaced with this exact fraction in both inverse relationships.
Common questions
What does this model assume?
Width divided by height is exactly 4/3. The captured rounded decimal coefficient is replaced with this exact fraction in both inverse relationships.
Can I solve for a different value?
Clear the desired editable unknown and enter sufficient independent known values. Unit selectors preserve quantities; singular or unsupported inverse branches remain incomplete.
References
Replace external illustrative media with authored accessible descriptions of all relationships and beat-unit variants, preserving original identities and conditions. Named aspect ratio is an exact integer fraction; replace truncated decimal in both inverse branches. Reject singular physical denominators and fractional discrete counts using exact isInteger checks.
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