What scales are commonly used in architecture?

Common architectural scales include 1:50 for detailed plans, 1:100 for floor plans, 1:200 for site plans, and 1:500 for master plans. The exact scale depends on the drawing size and level of detail needed.

Architectural Scale Converter

Q: How do I convert between architectural scales?

Enter the real-world measurement and select the source and target scales. The converter calculates the drawing dimensions at both scales and the conversion factor between them.

Convert between architectural drawing scales instantly. Free tool for architects, engineers, and design students.

Common Architectural Scales

1:1

Full-size details, joinery

1:5 / 1:10

Construction details

1:20 / 1:25

Room layouts, sections

1:50

Detailed floor plans

1:100

Standard floor plans

1:200

Site plans, building elevations

1:500

Site context, masterplans

1:1000+

Urban masterplans, mapping

FAQ

How do I convert between architectural scales?

Enter the real-world measurement in millimeters and select the source and target scales. The converter instantly calculates the drawing dimensions at both scales and provides the conversion factor.

What scale should I use for my architectural drawings?

Use 1:50 for detailed floor plans, 1:100 for standard floor plans, 1:200 for site plans and elevations, and 1:500 or 1:1000 for masterplans. The right scale depends on the level of detail needed and the drawing sheet size.

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