Uncompressed Image Size Calculator
Bytes = width × height × bits per pixel ÷ 8
Estimate uncompressed pixel data size from dimensions and color depth.
Formula
Bytes = width × height × bits per pixel ÷ 8
Worked example
Width: 1920 px
Height: 1080 px
Bits per pixel: 24
With these inputs, the result is 6.2208 MB.
How to use this calculator
- Identify the quantity you want to calculate.
- Enter your measurements in the units shown on each field.
- Read the result, which updates as you change the inputs.
- Check the assumptions below before applying the result.
Assumptions and limits
Excludes headers, metadata, compression, padding, and file-format overhead.
Precision and checking
Results are rounded for display. Use the most accurate measurements available, and avoid rounding your inputs unnecessarily. Extra decimal places in a result do not make an estimate more reliable.
To check a result, substitute the same input values into the formula shown above. Change one value at a time to understand how the quantity responds.
Frequently asked questions
What assumptions does this calculation use?
Excludes headers, metadata, compression, padding, and file-format overhead.
Are my inputs sent to a server?
No. The calculation runs locally in your browser. The result updates as you edit the inputs.
