Mailingbid

Calculate paper weight, from a sheet to a mailing

The calculator works out paper weight as width × height × grammage: per sheet, per mailing including envelope, insert, card and promotional item, and for the whole run. You enter size, grammage, number of sheets and number of mailings; results are calculated values, not weighed.

Last updated · Published by Mailingbid

A single sheet, a letter with an insert or a mailing with a promotional item: assemble the components of your mailing. The calculator shows paper weight per sheet, weight per mailing and the mass of the entire run. The first sheet’s dimensions and grammage come from your selection; all other starting values are an example calculation.

Your components

For a single sheet, leave only “Letter / single sheet” selected and set both the sheet count and mailing quantity to 1. With several components, their weights are added together.

Enter a whole number without thousands separators. Both variants use the same quantity.

Variant A

Unfolded means before folding. 0 < side length ≤ 9,999 mm; 0 < grammage ≤ 2,000 g/m²; 1–99 sheets. No thousands separators; decimal comma or point accepted. Up to 12 decimal places for dimensions and 3 for grammage.

4.0404 g per piece · 4.0404 g per mailing

Result for variant A

Variant A
4.0404 g per mailing · 4.0404 kg entire run

Calculated estimates, not measured weights: displayed to up to four decimal places, with no rounding before addition. Paper figures exclude additional ink, adhesive and finishing. The run weight excludes transport packaging.

Postal weight class

Classified by weight only: which postal class fits the calculated weight per mailing?

Postal weight class per country for the calculated weight per mailing
Country and productVariant A (4.0404 g)
Austria · LetterÖsterreichische Post, BriefBrief Sup to 20 g · Maximum size 235 × 162 × 5 mm
Austria · Advertising mailÖsterreichische Post, Info.Mail WerbungInfo.Mail Werbung Classicup to 50 g · Maximum size 235 × 162 × 5 mm
Germany · LetterDeutsche Post, BriefStandardbriefup to 20 g · Maximum size 235 × 125 × 5 mm
Germany · Advertising mailDeutsche Post, DialogpostDialogpost Standardup to 50 g · Maximum size 235 × 125 × 5 mm
Czechia · LetterČeská pošta, Obyčejné psaníObyčejné psaní standardup to 50 g · Maximum size 231 × 164 × 5 mm
Czechia · Advertising mailČeská pošta, Obchodní psaníObchodní psaníup to 50 g · Maximum size 353 × 250 × 20 mm
Slovakia · LetterSlovenská pošta, Listová zásielkaŠtandardná listová zásielkaup to 50 g · Maximum size 235 × 165 × 5 mm
Slovakia · Advertising mailSlovenská pošta, Reklamná adresovaná zásielkaReklamná adresovaná zásielkaup to 50 g · Maximum size 235 × 165 × 5 mm

Weight alone does not decide the class: size and thickness count as well, and the posts’ current conditions are authoritative (as of 23 October 2026). The calculator shows no prices. Envelope and promotional item are included only with the weight you entered.

Weight by component

The bars and table show grams per mailing. Both variants use the same scale; the longer bar represents the higher total weight.

Weight of each component in grams per mailing
ComponentVariant A (g)
Letter / single sheet4.0404
Total4.0404

Request a quote for these components

We transfer the selected variant into your request as editable notes and the relevant component specifications. Dimensions and grammages outside the component fields remain in the brief in full. Add countries, quantities and contact details in the form. The country allocation must match the planned run. If you change components or quantities, update the original calculation brief in the notes too. Starting a request is free and non-binding.

Use variant A in a request
View the details transferred for variant A
Original calculation brief from the paper weight calculator · Variant A
Originally planned quantity: 1,000 mailings (check the country allocation in the form).
Letter / single sheet: 1 pieces/mailing; 148 × 210 mm unfolded; 130 g/m²; calculated paper weight 4.0404 g; combined 4.0404 g.
Calculated estimate: 4.0404 g/mailing; 4.0404 kg for the run (excluding transport packaging).
If you change components or quantities in the request form, update or recalculate this original brief. The agreed specification takes precedence.
Paper figures exclude additional ink, adhesive and finishing. No postage calculation. Weigh a finished sample; agree unfolded dimensions and folds. Values that cannot be entered in the component fields are retained here in full.

From grammage to sheet weight

Grammage is mass per unit area, expressed in g/m². Multiplying area by grammage gives paper weight. IGEPA explains this relationship; GLOBAL-PRINT shows the calculation using centimetres. Sources: IGEPA: grammage; GLOBAL-PRINT: paper weight.

Width (mm) × height (mm) × grammage (g/m²) ÷ 1,000,000 = sheet weight (g)

When using centimetres, divide by 10,000. For several sheets, multiply the result by the sheet count. Add the weights of all components for one mailing, then multiply by the number of mailings for the run. Divide grams by 1,000 to get kilograms.

GLOBAL-PRINT lists A4 and A5 dimensions; FLYERALARM’s data sheet gives A6. The DIN long preset here is 99 × 210 mm, as in Flyerfabrik’s print templates. Always use the actual dimensions of your paper. Sources: GLOBAL-PRINT; FLYERALARM: A6 data sheet; Flyerfabrik: print templates.

Worked example: two sheets and an envelope

A sheet measuring 210 × 297 mm at 80 g/m² has a calculated weight of 4.9896 g. Two sheets give 9.9792 g. Adding an assumed, separately established envelope weight of 6 g gives 15.9792 g per mailing. For 1,000 mailings, that is 15.9792 kg. These figures are an example, not the weight specification of a particular envelope.

Count physical sheets, not printed pages

In this calculator, a “sheet” is one physical piece of paper at its unfolded size. A sheet printed on both sides still counts as one sheet in the paper calculation. Folding a sheet once can create four pages; enter one sheet with its unfolded dimensions. Printing ink itself is not included.

Which variant should go into production?

Copy A to B and initially change just one value, such as grammage or the number of inserts. Compare the calculated results, then have a fully assembled sample mailing weighed. For envelopes and promotional items, use a measurement or the manufacturer’s weight; the calculator does not represent these items as rectangular sheets.

This tool does not calculate postage or promise postage savings. For letter products, Austrian Post and Deutsche Post specify dimensions or thickness as well as weight. Check the particular postal product with your mailing fulfilment provider. Sources: Austrian Post: letters; Deutsche Post: examples and tips.

Postal weight classes in AT, DE, CZ and SK

The classes come from the posts’ own terms, checked on 23 October 2026. For each country you see the single letter and addressed advertising mail (Info.Mail, Dialogpost, Obchodní psaní, Reklamná adresovaná zásielka). Classification is by weight only: the first class whose maximum weight is not exceeded is shown as fitting. Maximum sizes are given for orientation; whether a mailing fits the format, and which conditions apply to quantity, content and sorting, is for the post to confirm. Tariff weight steps can be finer than the product classes; the relevant price list is authoritative.

Sources (checked 23 October 2026):