The actual size on the drawing is 8 cm, and the conversion ratio is 1:700

The actual size on the drawing is 8 cm, and the conversion ratio is 1:700

The actual length is 8 * 7. If it's 1:60, it's 8 * 0.6

What is the conversion between millimeter and meter?
The default unit of CAD is mm. How to calculate mm when drawing

This is the most basic common sense. It shows that you are not attentive in school, or you are not suitable for engineering. In this industry, everyone must have a tape measure. You can buy one, and you can understand it as soon as you read it, and remember it as soon as you have enough. You will never forget it for a lifetime. 1m = 100cm = 1000mm
1M=100CM=1000MM. Meter, Centimeter, Millimeter.

How much kg is 450mg? It is written in the form of science and technology law

1 mg = 10 to the sixth power
Therefore, 450mg = 450 * 10 to the sixth power gram = 450 * 10 to the third power gram = 4.5 * 10 to the fifth power kilogram