Paper Weight Conversion Chart - Paper Conversions

Common Kraft Paper Weights & Thickness

Kraft paper is a very popular material for flexible packaging, and its used across virtually every industry. It's more eco-friendly than many other materials, and can be easily customized to best represent your brand. As it grows in popularity, our team is converting more and more Kraft paper measurements into bag measurements. For context, paper is measured by paper weights and flexible packaging is measured in thickness.

kraft paper thikness Paper thickness conversion chart

This can be quite confusing for many of our customers, so we put together these paper thickness conversion calculator which should clear up some of the confusion. If you have any questions as you review these conversion charts, feel free to contact us for more information. View our weight conversion chart below so you know by how many inches to offset your order. 

Our team is more than willing to help! 

Paper Weight (GSM)

Thickness (MM)

Thickness (MIL)

Thickness (Micron)

45 GSM

.76 MM - 0.81 MM

3 mil - 3.14mil

55 - 65 um

60 GSM

0.8 MM - 0.85 MM

2.75 - 3.35 mil

70 - 85 um

70 GSM

0.8 MM- 0.10 MM

3.1 mil - 4.7 mil

80 - 95um

80 GSM

0.09 MM - .11 MM

3.5 mil - 4.33 mil

90 - 110um

Kraft Paper uses in Flexible Packaging

Kraft paper in flexible pouches Paper thickness conversion chart

Historically Kraft paper was used in flexible pouches merely as an esthetic preference. Recently Kraft paper has also become popular when combined with compostable bioplastics of any paper color, micro format or otherwise, to create compostable pouches. Kraft paper comes in bleached white, or natural kraft brown. The exact color of kraft paper varies between lots and sources. 

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45 GSM Kraft Paper

45 GSM kraft paper is best for gusseted pouches because the paper is more flexible than thicker papers, which will allow the gusset to open, and develop less creases in the paper. If you're moving to roll foils or standing pouches, this is the Kraft paper material we recommend. 

60 GSM Kraft Paper

60 GSM kraft paper is another common thickness which will have a more textured feeling when touched. 60 GSM paper is stiffer than 45 GSM, but generally converts well for most pouches. Overall, 60 GSM is very balanced and you'll notice it provides a good balance between stiffness, thickness, cost, and how it feels to the touch. 

70 GSM Kraft Paper

70 GSM is typically used for box bottom and side gusseted pouches. 70 GSM Kraft paper is typically laminated to metalized PET and PE to create a rigid box bottom bag. If you've ever handled a paper bag that is stiff enough to stand upright, you're likely using a paper bag crafted from 70 GSM. 

80 GSM Kraft Paper

80 GSM Kraft paper is typically not used for most flexible pouches because the paper is too thick and will create a ridgid pouch which will wrinkle easily and doesn't conform well to other materials. Regardless, we are including it here as reference in case one of our customers does wish to use 80 GSM Kraft paper. 

C2S Art Paper Thickness & Paper Weight Conversion

Paper Weight (GSM)

Thickness (MM)

Thickness (MIL)

Thickness (Micron)

80 GSM

0.06 MM

2.36 mil

60 um

90 GSM

0.07 MM

2.75 mil

70  um

100 GSM

0.08 MM

3.14 mil

80 um

105 GSM

0.09 MM

3.54 mil

90 um

120 GSM

0.10 MM

3.93 mil

100 um

128 GSM

0.12 MM

4.72 mil

120 um

150 GSM

0.13 MM

5.11 mil

130 um

157 GSM

0.14 MM

5.51 mil

140 um

180 GSM

0.16 MM

6.29 mil

160 um

200 GSM

0.18 MM

7.08 mil

180 um

210 GSM

0.22 MM

8.66 mil

220 um

230 GSM

0.23 MM

9.05 mil

230 um

250 GSM

0.25 MM

9.84 mil

250 um

300 GSM

0.32 MM

12.59 mil

320 um

350 GSM

0.36 MM

14.17 mil

360 um

400 GSM

0.43MM

16.92 mil

430 um

C1S Art Paper Thickness

Paper Weight (GSM)

Thickness (MM)

Thickness (MIL)

Thickness (Micron)

80 GSM

0.08 MM

3.14 mil

80 um

170 GSM

0.23 MM

9.05 mil

230 um

190 GSM

0.26 MM

10.23 mil

260 um

210 GSM

0.28 MM

11.02 mil

280 um

230 GSM

0.32 MM

12.59 mil

320 um

250 GSM

0.35 MM

13.77 mil

350 um

300 GSM

0.42 MM

16.53 mil

420 um

350 GSM

0.49 MM

19.29 mil

490 um

400 GSM

0.56 MM

22.04 mil

560 um

Wood Free Offset Paper

Paper Weight (GSM)

Thickness (MM)

Thickness (MIL)

Thickness (Micron)

60 GSM

0.08 MM

3.14 mil

80 um

70 GSM

0.09 MM

3.54 mil

90  um

80 GSM

0.11MM

4.33 mil

110 um

100 GSM

0.12 MM

4.72 mil

120 um

120 GSM

0.15 MM

5.90 mil

150 um

140 GSM

0.16 MM

5.51 mil

140 um

160 GSM

0.18 MM

7.08 mil

180 um

180 GSM

0.22 MM

8.66 mil

220 um

200 GSM

0.24 MM

9.44 mil

240 um

230 GSM

0.28 MM

11.02 mil

280 um

250 GSM

0.29 MM

11.41 mil

290um

300 GSM

0.35 MM

13.77 mil

350 um

Matte Coated Paper

Paper Weight (GSM)

Thickness (MM)

Thickness (MIL)

Thickness (Micron)

80 GSM

0.08 MM

3.14 mil

80 um

90 GSM

0.09 MM

3.54 mil

90 um

105 GSM

0.1MM

3.93 mil

100 um

115 GSM

0.11 MM

4.33 mil

110 um

128 GSM

0.13 MM

5.11 mil

130 um

157 GSM

0.16 MM

6.29 mil

160 um

200 GSM

0.20 MM

7.87 mil

200 um

230 GSM

0.24 MM

9.44 mil

240 um

250 GSM

0.26 MM

10.23 mil

260 um

300 GSM

0.29 MM

11.41 mil

290 um

White Cardboard Paper

Paper Weight (GSM)

Thickness (MM)

Thickness (MIL)

Thickness (Micron)

190 GSM

0.25 MM

9.84 mil

250 um

210 GSM

0.28 MM

11.02 mil

280 um

250 GSM

0.33 MM

12.99 mil

330 um

300 GSM

0.38 MM

14.96 mil

380 um

350 GSM

0.48 MM

18.89 mil

480 um

400 GSM

0.51 MM

20.07 mil

510 um

450 GSM

0.6 MM

23.62 mil

600 um

500 GSM

0.67 MM

26.37 mil

670 um

Grey Cardboard Paper

Paper Weight (GSM)

Thickness (MM)

Thickness (MIL)

Thickness (Micron)

250 GSM

0.32 MM

12.59 mil

320 um

300 GSM

0.35 MM

13.77 mil

350 um

350 GSM

0.48 MM

18.89 mil

480 um

400 GSM

0.53 MM

20.86 mil

530 um

450 GSM

0.65 MM

25.59 mil

650 um

Kraft Paper

Paper Weight (GSM)

Thickness (MM)

Thickness (MIL)

Thickness (Micron)

60 GSM

0.1 MM

3.93 mil

100 um

80 GSM

0.12 MM

4.72 mil

120 um

120 GSM

0.17 MM

6.69 mil

170 um


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