Measurement

Scaling

Definition

The process of multiplying or dividing measurements by a consistent factor to convert between sizes, representations, or units while preserving relative relationships.

Explanation

A 1:50,000 map means every 1 cm on the map represents 50,000 cm (500 m) on the ground. Doubling a recipe scales all ingredient quantities by a factor of 2. In engineering, stress scales with the square of linear dimension — a bridge twice as tall must carry four times the wind load per unit area, which is why small models don’t predict full-scale structural behavior without scaling corrections.

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RELATED TERMS

Conversion Factor

A numerical multiplier used to convert a quantity from one unit to another.

Precision

The degree of refinement in a measurement, indicated by the number of significant digits.

Accuracy

How close a measurement is to the true value of the quantity being measured.

Dimensional Analysis

A method of converting units by multiplying by conversion factors that equal 1.

Nautical Mile

A unit of distance used in sea and air navigation, equal to 1,852 meters.