Cardstock Weight Converter (lb → gsm)
Cardstock is labelled by US "cover" pound weight, and the conversion factor differs from bond or text grades even at the same pound number. For cover stock, gsm = lb × 2.708 — 65 lb cardstock lands around 176 gsm, the thickness common for invitations and business cards.
Your numbers
Grammage (gsm)
176gsm
Formula
Grammage (gsm) = Cardstock weight (lb) × 2.708
This factor is for cover-weight stock only. A 65 lb bond or text sheet is a different, lighter paper and needs its own conversion factor, not this one.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| Cardstock weight (lb) (lb) | 65 | 20 ~ 130 |
Step by step
Quick reference table
Results when only Cardstock weight (lb) (lb) changes and everything else stays put.
| Cardstock weight (lb) (lb) | Grammage (gsm) (gsm) |
|---|---|
| 32.5 | 88 |
| 48.8 | 132 |
| 65 | 176 |
| 97.5 | 264 |
| 130 | 352 |
What each result means
| Result | At default values |
|---|---|
| Grammage (gsm) (gsm)International paper weight standard — grams per square metre, used in place of thickness. | 176 |
Common mistakes
This factor is for cover-weight stock only. A 65 lb bond or text sheet is a different, lighter paper and needs its own conversion factor, not this one.
Frequently asked questions
QHow is Cardstock Weight Converter (lb → gsm) calculated?
Grammage (gsm) = Cardstock weight (lb) × 2.708 — Cardstock is labelled by US "cover" pound weight, and the conversion factor differs from bond or text grades even at the same pound number. For cover stock, gsm = lb × 2.708 — 65 lb cardstock lands around 176 gsm, the thickness common for invitations and business cards.
QCan you walk through an example?
With Cardstock weight (lb) 65lb, the answer is Grammage (gsm) 176gsm.
QWhat do I need to enter?
Enter Cardstock weight (lb). The result recalculates as you type, and an empty box counts as zero.
QHow much does the answer move if I change a number?
Changing only Cardstock weight (lb) (lb) moves the answer to Cardstock weight (lb) (lb) 32.5 → Grammage (gsm) (gsm) 88 and Cardstock weight (lb) (lb) 130 → Grammage (gsm) (gsm) 352. The table below lays out five steps.
QHow are the numbers rounded?
Money is shown to the nearest whole unit, percentages to one decimal place and everything else to two. What you see is rounded; the calculation itself carries the unrounded value forward.
QAnything to watch out for?
This factor is for cover-weight stock only. A 65 lb bond or text sheet is a different, lighter paper and needs its own conversion factor, not this one.
Related calculators
Materials differ in density and absorption. If your label states a figure, use it — the defaults here are only common values.