How to use this tool
- Enter the measured quantities and your own planning assumptions.
- Review all calculated outputs and the stated limitations.
Try this example
{
"width": 40,
"ends_cm": 4,
"edge_ends": 4,
"length": 200,
"takeup": 10,
"loom_waste": 60
}Accuracy and scope
Planning estimate using the assumptions you enter; verify dimensions and real operating constraints before purchase or use.
Is my data uploaded?
This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.