Scale Conversion Calculator

Scale a measurement to a larger or smaller measurement, which is useful for architecture, modelling, and other projects, our online scale length converter that calculates the actual length and the scale length according to the scale ratio. scale ratio could be set by yourself, supports different length units, including imperial units and metric units. With visual graphic and formula, it let us more easily understand the calculation process and the result.

How to use this scale converter

1. Set the scale ratio according your need, eg 1:12, 1:32, 64:1
2. Select the unit of real length and scale length
3. Using different units will automatically convert the result
4. Enter the number of real length, the scale length will be calculated automatically.
5. Enter the number of scale length, the real length will be calculated automatically.

scale drawings show an image either reduced or enlarged in size. The change between the original and the scaled drawing is generally represented by two numbers separated by a colon, like 10:1 (read as “ten to one”). The difference between the ratio numbers represents the factor by which the scaled image is enlarged or reduced. So for a 10:1 scale ratio, a 1 inch (2.5 cm) drawing will be 10 inches (25 cm) in real life.

How to calculate scale conversion

To calculate the scale length, use real length divide the scale factor of it, then multiply the scale factor of scale length.
For example
Scale ratio 1:20
Real length : 100 cm
Scale length : 100 cm ÷ 20 × 1 = 5 cm = 50 mm

What do you think about this scale conversion calculater ?

Try the scale calculater on your smartphone

Length Converters

• Inches to CM : convert inches(in) to centimeters(cm), or centimeters to inches.
• Inches to feet : convert inches(in) to feet(ft), or feet to inches.
• MM to CM : convert millimeters(mm) to centimeters(cm), or centimeters to millimeters.
• Feet to CM : convert feet(ft) to centimeters(cm), or centimeters to feet.
• Height conversion : convert feet and inches to centimeters, convert cm to ft and in.
• Scale converter : calculate the actual length and the scale length according to the scale ratio.

Online Virtual Rulers

• online real size ruler : It's a good idea to check the products size, before we buying it from internet, try this virtual actural size ruler
• imperial scale ruler : Online scale ruler with imperial units(in, ft, yd, mi)
• metric scale ruler : Online scale ruler with metric units(cm, m, km)

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