Select the length material and enter the length in cm to calculate the weight in kg. This calculator can also convert volume to kg.

CM to Kg
Volumetric Density
CM to Kg
Kg to CM
Custom Linear Weight

CM to Kg by Material or Product

Choose a material or standard product, then enter total length in centimeters to estimate weight.

Material rows assume a 1 cmยฒ cross-section, turning density into linear weight. Product rows use standard weight-per-length values.

1 cm
10 cm
100 cm
1000 cm

Kg to CM by Material or Product

Choose a material or standard product, then enter kilograms to estimate how many centimeters you have.

1 kg
10 kg
50 kg
100 kg

Custom Linear Weight

Enter any two values to solve for the third: linear weight, centimeters, or kilograms.

Volumetric Density

Enter any two values to solve for the third. You can also choose a material to autofill density.

Kgs from Cm Formula

m = L * \lambda

Variables:

  • m is the mass (kilograms, kg)
  • L is the total length (centimeters, cm)
  • ฮป is the linear density (kilograms per centimeter, kg/cm)

To calculate kg from cm (length), multiply the length by the linear density (mass per unit length).

Centimeters to Kilograms Conversion Table (Assumes linear density ฮป = 0.10 kg/cm)
Length (cm) Kilograms (kg)
10.100
20.200
30.300
50.500
101.000
151.500
202.000
252.500
303.000
404.000
505.000
606.000
757.500
808.000
909.000
10010.000
12012.000
15015.000
18018.000
20020.000
* Rounded to 3 decimals. Formula: kg = linear density (kg/cm) ร— length (cm). Table assumes ฮป = 0.10 kg/cm.

How to Calculate Kgs from Cm?

The following steps outline how to calculate the kg from cm (length) using linear density.


  • First, determine the total length (cm). 
  • Next, determine the linear density (for example, kg/cm or kg/m). 
  • Next, gather the formula from above: m = L ร— ฮป.
  • Finally, calculate the mass (kg) from the length (cm).
  • After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

Length (cm) = 5

Linear density (kg/cm) = 0.10 (so mass = 5 ร— 0.10 = 0.50 kg)

FAQs

What is linear density and how is it measured?

Linear density is mass per unit length. It is measured in units such as kilograms per meter (kg/m), grams per meter (g/m), or kilograms per centimeter (kg/cm).

Can centimeters (cm) be converted directly to kilograms (kg)?

No. A length (cm) cannot be converted to a mass (kg) without additional information such as a linear density (kg/cm) for the object, or a volume plus a volumetric density.

Can the formula for calculating kg from cm be used for any material?

Yes, as long as you know the correct linear density (mass per unit length) for the specific object. If you only know the materialโ€™s volumetric density (for example, g/cmยณ), you must also know the cross-sectional area to convert it to linear density (ฮป = ฯ ร— A, with consistent units).

How can errors be minimized?

Use accurate measurements for length, and make sure the linear density is expressed in compatible units (for example, kg/cm with cm). Double-check unit selections before calculating.