Last updated: 2025-09-23

Weight calculation (window)

Settings > Weight calculation

In this Price item

In this window you make settings for weight calculation. For more information, see Calculating the pricing weight.

The weight calculations can be set in the following registers. If the setting is [Default], Opter moves on to the next option in the list:

  1. Customer register (tab Order Settings).

  2. Price list (tab General).

  3. The constants settings where you have to select a weight calculation (tab Weight/Distance).

General

General

Function

Description

Name

Enter the name of the weight calculation.

Description

Free text field for internal notes. The description is not displayed anywhere else but here.

Pricing weight rounding

Choose which set of Rounding rules to use.

To create a new set of Rounding rules or modify an existing one, click on or at the drop-down menu and the window will open Rounding rules. For more information, see Rounding rules (window) and Calculating the pricing weight.

The default setting [None] means that there is no rounding. (In previous versions of Opter it says [Default] instead of [None]. If you select [Default] there is no rounding).

Length weight calculation

Choose which Length weight calculation to use.

To create a new Length weight calculation or modify an existing one, click on or at the drop-down menu and the window will open Length weight calculation. For more information, see Length weight calculation (window) and Setting up weight calculation for long goods.

The default setting [None] means that no long goods weight calculation takes place. (In previous versions of Opter it says [Default] instead of [None]. If you choose [Default], there is no long-haul weight calculation).

Ignore quantity when calcualting packages

Choose whether Opter should take into account or disregard what is written in the column Quantity in the section Packages when calculating the pricing weight:

: Disregard what is written in the column Quantity when calculating.

Select this option if you want to be able to enter, for example, "10 parcels weighing a total of 50kg" in a row in the section Packages, but do not want what is in the column Weight (and others) to be multiplied by what is in the column Quantity. (Because it would then be 10 x 50kg = 500kg, which is incorrect.)

The picture shows a part of the Packages section of the Order reception.

: Please take into account what is written in the column Quantity when calculating.

Select this option if you want to be able to enter, for example, "10 packages of 5 kg" on a line in the section Packages and want the weight calculation to sum this up to 10 x 5 kg = 50 kg.

If you do not display the column Quantity in the section Packages and instead enter information about one package per row, it does not matter what setting this checkbox has. Opter does the weight calculation based on there being one package per row.

Aggregate package pricing weights

The default handling is that Opter sums all dimensions on the order, one by one. For example, all load metres for all packages on an order are added together in one total.

If you work a lot with packages that have mixed units (e.g. some have volume or load metres, others do not), you can tick the checkbox Aggregate package pricing weights to get a correct pricing weight.

: The pricing weight is calculated separately for each package, then these separate pricing weights are totalled.

: All dimensions present on the order are totalled separately.

Example

This is how Opter calculates the pricing weight depending on the checkbox setting:

Column 1: Weight: 70 kg, Volume: 1,0 m3.

Column 2: Weight: 200 kg, Volume: No data available.

  • Aggregate package pricing weights

    Orders summarise the dimensions as usual, it will then be:

    70 + 200 kg = 270 kg

    1.0 + 0.0 m3 = 1.0 m3

    With a weight factor of 300 kg per m3 we then get:

    Volume: 1.0 x 300 = 300 kg

    Weight: 270 kg

    The prize weight is the largest of these, i.e. 300kg.

    (Weight factors are described below.)

  • Aggregate package pricing weights

    With separate calculation per package, the pricing weight for each package is also calculated, it will then be:

    • Column 1:

      70 kg => 70 kg

      1.0 m3 => 300 kg

      300 kg is the largest, so parcel 1 has a pricing weight of 300 kg.

    • Column 2:

      200 kg => 200 kg

      0.0 m3 => 0 kg

      200 kg is the largest so package 2 has a pricing weight of 200 kg.

    The sum of these is 300 kg + 200 kg = 500 kg.

    This is more than the order's pricing weight from the order dimensions (300kg), so the pricing weight is changed to 500kg instead.

Weight factors

The weight factors are used to convert the current dimension to kg. For example, 1 m3 = 300 kg, and 1 load metre = 1950 kg.

  1. In the = KG field, enter a weight factor for the dimension.

  2. In the Rounding after conversion to KG drop-down menu, you can choose one of the following:

    • [None].

      The value you have entered in the = KG field is not rounded.

    • Default.

      The value is rounded according to standard rules, but if the decimal is 0.5, it is rounded to the nearest even integer. (This is to avoid systematically getting higher values after rounding.)

      • 5.1 kg > 5.0 kg (normal rounding)

      • 4.9 kg > 5.0 kg (normal rounding)

      • 4,5 kg > 4,0 kg (nearest even integer)

      • 5.5 kg > 6.0 kg (nearest even integer)

    • Rounding rules that you have created yourself in the window Rounding rules.

      To create a new set of Rounding rules or modify an existing one, click on or at the drop-down menu. For more information, see Rounding rules (window).

  3. Checkbox Individual calculation:

    If you use extra dimensions, you can choose whether an extra dimension is calculated individually or whether you want two or more to be added together. The checkbox works like this:

    • : The dimension is calculated individually.

      The checkbox is automatically selected (and cannot be changed) for the dimensions Volume, Pallet space and Load metre, as these dimensions are always calculated individually.

      For extra dimensions, tick the checkbox if you want the extra dimension to be calculated individually.

    • : The dimension is calculated individually.

    • : If you use extra dimensions, you can untick the checkbox for two or more extra dimensions. The extra dimensions will then be added together. See the example below.

    Extra dimension 1 has a weight factor of 325 kg.

    Extra dimension 2 has a weight factor of 162.5 kg.

    Extra dimension 3 has a weight factor of 400 kg.

    We want extra dimensions 1 and 2 to be added together, and extra dimension 3 to be calculated individually. So we uncheck the checkbox Individual calculation for extra dimension 1 and 2, and check the checkbox for extra dimension 3.

    We have an order for 2 pieces of extra dimension 1, 2 pieces of extra dimension 2, and 2 pieces of extra dimension 3. Opter then calculates as follows:

    Extra dimension 1: 2 x 325 kg = 650 kg.

    Extra dimension 2: 2 x 162.5 kg = 325 kg.

    Extra dimension 3: 2 x 400kg = 800kg.

    Opter summarises Extra dimension 1 and Extra dimension 2: 650 kg + 325 kg = 975 kg.

    This is more than the pricing weight from any other dimension (Extra dimension 3 800kg), so the pricing weight will be 975kg.

Function

Description

Volume

Here you can specify the weight factor Opter should use for weight calculation of the dimension Volume.

For example, if you want to convert one cubic metre into 300 kg, enter "300" in the field = KG. The Rounding after conversion to KG drop-down list will automatically select [None]. The checkbox Individual calculation is automatically ticked, as the dimension Volume should always be calculated individually.

For instructions, see above the table.

Pallet space

Here you can specify the weight factor Opter should use for weight calculation of the dimension Pallet space.

For instructions, see above the table.

Load metre

Here you can specify the weight factor Opter should use for weight calculation of the dimension Load metre.

For instructions, see above the table.

Extra dimension 1-Extra dimension 5 (Displayed if you use extra dimensions.)

Here you can specify the weight factor Opter should use for weight calculation of extra dimensions and choose whether an extra dimension should be calculated individually or whether you want two or more to be added together.

For instructions, see above the table.

Automatic dimensions

Volume

Function

Description

Calculate volume automatically

: Calculation of volume is performed automatically. (See also the Calculate volume only if the package is stackable tick box below).

: Calculation of volume is not performed automatically.

Calculate volume only if the package is stackable

The checkbox can only be ticked if the Calculate volume automatically checkbox (above) is ticked.

: Volume calculation is only performed if the package is stackable.

: Volume calculation is always performed if the checkbox Calculate volume automatically above is ticked, regardless of whether the package is stackable or not.

You decide what you want 'stackable' to mean in your organisation.

You can specify per package whether it is stackable or not.

For example, if you are transporting flagpoles, you can use the surface several times (by loading several flagpoles on top of each other, or laying the flagpoles on top of other goods). Flagpoles are durable and not very heavy. Therefore, the length weight, and therefore the price, can be lower than if the entire width of the vehicle had been used.

Rounding

Select one of the following:

  • [None].

    The results of the calculation are not rounded.

  • Default.

    The result of the calculation is rounded according to standard rules, but if the decimal is 0.5, it is rounded to the nearest even integer. (This is to avoid systematically getting higher values after rounding.)

    • 5.1 kg > 5.0 kg (normal rounding)

    • 4.9 kg > 5.0 kg (normal rounding)

    • 4,5 kg > 4,0 kg (nearest even integer)

    • 5.5 kg > 6.0 kg (nearest even integer)

  • Rounding rules that you have created yourself in the window Rounding rules.

    To create a new set of Rounding rules or modify an existing one, click on or at the drop-down menu. For more information, see Rounding rules (window).

Maximum length

Enter the maximum length of the package for the calculation of the volume to be performed.

WCA_VolumeMaxLength

Maximum width

Enter the maximum width of the package for the calculation of the volume to be performed.

Maximum height

Enter the maximum height of the package for the calculation of the volume to be performed.

Load metre

Function

Description

Calculate load metres automatically

: Calculation of load metres is done automatically. (See also the tick boxes below.)

: The calculation of load metres is not performed automatically.

Calculate load metres only if volume is missing

The checkbox can only be ticked if the Calculate load metres automatically checkbox (above) is ticked.

: Calculation of load metres is only performed if volume is missing.

: Calculation of load metres is always performed if the checkbox Calculate load metres automatically (above) is checked, and if the checkbox Calculate load metres only if length weight is missing (below) is unchecked.

Calculate load metres only if length weight is missing

The checkbox can only be ticked if the Calculate load metres automatically checkbox (above) is ticked.

: Calculation of load metres is only carried out if length weight is missing.

: Calculation of load metres is always performed if the checkbox Calculate load metres automatically (above) is checked, and if the checkbox Calculate load metres only if volume is missing (above) is unchecked.

Rounding

Select one of the following:

  • [None].

    The results of the calculation are not rounded.

  • Default.

    The result of the calculation is rounded according to standard rules, but if the decimal is 0.5, it is rounded to the nearest even integer. (This is to avoid systematically getting higher values after rounding.)

    • 5.1 kg > 5.0 kg (normal rounding)

    • 4.9 kg > 5.0 kg (normal rounding)

    • 4,5 kg > 4,0 kg (nearest even integer)

    • 5.5 kg > 6.0 kg (nearest even integer)

  • Rounding rules that you have created yourself in the window Rounding rules.

    To create a new set of Rounding rules or modify an existing one, click on or at the drop-down menu. For more information, see Rounding rules (window).

Maximum length

Enter the maximum length of the package for the load metre calculation to be performed.

Maximum width

Enter the maximum width of the package for the load metre calculation to be performed.

Maximum height

Enter the maximum height of the package for the load metre calculation to be performed.

Square metres per load metre

Indicate how many square metres a load metre should correspond to, for example 2.40.

Pallet space

Function

Description

Calculate pallet spaces automatically

: Pallet space calculation is performed automatically. (See also the Calculate pallet spaces only if evenly divisible by pallet size tick box below).

: Pallet space calculation is not performed automatically.

Calculate pallet spaces only if evenly divisible by pallet size

The checkbox can only be ticked if the Calculate pallet spaces automatically checkbox (above) is ticked.

: Pallet space is only calculated if it is evenly divisible by the pallet dimensions.

Enter the length and width of a pallet in the fields:

  • Length for 1 pallet.

  • Width for 1 pallet.

: Pallet space calculation is always performed if the checkbox Calculate pallet spaces automatically (above) is ticked.

Rounding

Choose one of the following:

  • [None].

    The results of the calculation are not rounded.

  • Default.

    The result of the calculation is rounded according to standard rules, but if the decimal is 0.5, it is rounded to the nearest even integer. (This is to avoid systematically getting higher values after rounding.)

    • 5.1 kg > 5.0 kg (normal rounding)

    • 4.9 kg > 5.0 kg (normal rounding)

    • 4,5 kg > 4,0 kg (nearest even integer)

    • 5.5 kg > 6.0 kg (nearest even integer)

  • Rounding rules that you have created yourself in the window Rounding rules.

    To create a new set of Rounding rules or modify an existing one, click on or at the drop-down menu. For more information, see Rounding rules (window).

Maximum length

Enter the maximum length of the package for the Pallet space calculation to be performed.

Maximum width

Enter the maximum width of the package for the Pallet space calculation to be performed.

Maximum height

Enter the maximum height of the package for the Pallet space calculation to be performed.

Load metres per pallet space

Indicate how many load metres a Pallet space should correspond to, for example 1.20.

Example

The Example box shows how volume, load metres and Pallet space are calculated.

The calculation for load metres will change if you change the value in the Square metres per load metre field in the Load metre box above.

The calculation for Pallet space will change if you changed the value in the Load metres per pallet space field in the Pallet space box above.

See also