Practical tools for measured work
Linear inches calculator
Add length, width and height to calculate combined dimensions in inches and centimetres.
Calculate the layout, check the diagram, then print the result for the shop or jobsite.
How it works
Linear inches here means the sum of three outside dimensions: length + width + height. Measure the greatest outside dimensions, including protruding handles or wheels when the relevant baggage policy counts them.
20 in + 14 in + 9 in = 43 linear inches = 109.22 cm
Current-input example
The result above uses these exact values. This snapshot is included when the page is printed so the output can be checked against the original measurements.
- Length unit
- in
- Length
- 20 in
- Width
- 14 in
- Height
- 9 in
Primary result: Linear inches: 43 in.
Before using the result
- Check the selected mode, units and input values before using the result.
- Read the assumptions and rounding rules; compare the worked example with your intended calculation.
- A numerical result does not supply missing context or change the stated limitations.
Limitations
This is a dimension sum, not volume or parcel length-plus-girth. It does not determine airline acceptance; compare the result with the current policy for your carrier and ticket.
Frequently asked questions
Is linear inches the same as cubic inches?
No. Linear inches adds the three dimensions. Cubic inches multiplies them to calculate rectangular volume.
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