Question 1

How do I use a scale?

Accepted Answer

1:100 scale means 1 unit on drawing = 100 units in reality. 5cm on 1:100 map = 500cm = 5m actual.

Question 2

How do I calculate actual size from scale model?

Accepted Answer

Multiply model size by scale factor. 3cm on 1:50 model = 3 × 50 = 150cm = 1.5m actual.

Question 3

How accurate are these calculations?

Accepted Answer

Our calculator uses double-precision floating-point arithmetic, accurate to about 15-16 significant digits for most calculations.

Question 4

Can I use the result in further calculations?

Accepted Answer

Yes, results are calculated to full precision. You can copy the exact value or use the rounded display depending on your needs.

Scale Calculator - Free Online Tool

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