Scale Converter
Convert blueprint and architectural dimensions with a precise scale ratio, custom factors, and compatible length units.
Presets
Choose a scale and enter a dimension.
Result:
In multiple units
Quick reference
1 in = 25.4 mm · 1 ft = 304.8 mm · 1 yd = 0.9144 m · 1 mi = 1.609344 km
A QUICK WALKTHROUGH
How to use this tool
- Choose a preset scale or enter a custom denominator.
- Choose the conversion direction and enter one dimension with its unit.
- Review the converted dimension and equivalent common length units.
For a 1:N scale, actual = scaled × N and scaled = actual ÷ N. Unit conversion is applied before the scale ratio.
This converter handles linear lengths only. It does not infer area, volume, map projections, or architectural standards beyond the ratio you enter.
Values stay in your browser and are not uploaded or stored.
Values stay in your browser and are not uploaded or stored.
GOOD TO KNOW
Common questions
Values stay in your browser and are not uploaded or stored.
Values stay in your browser and are not uploaded or stored.
This converter handles linear lengths only. It does not infer area, volume, map projections, or architectural standards beyond the ratio you enter.
This converter handles linear lengths only. It does not infer area, volume, map projections, or architectural standards beyond the ratio you enter.