Film Gauge to Microns Converter
Instantly convert plastic film thickness from gauge to microns (μm). Accurate, free calculator for packaging, polythene bags, and industrial films.
Calculate Your Film Thickness
Enter your plastic film thickness in gauge below to get an instant, precise conversion to microns (μm) and mils, the standard units used in global manufacturing.
Thickness Converter
Enter the gauge value to see the micron equivalent
Enter your material specification in gauge
Equivalence: 100 Gauge = 1 Mil = 25.4 Microns
Converted Thickness
Based on standard industrial conversion factors
Film Gauge to Microns Reference Chart
Common plastic film thickness conversions used across the packaging, agricultural, and industrial manufacturing sectors.
| Gauge | Mil | Microns (μm) | Common Application |
|---|---|---|---|
| 50 | 0.5 | 12.7 | Lightweight produce bags, dry cleaning covers |
| 100 | 1.0 | 25.4 | Standard retail carrier bags, light shrink wrap |
| 150 | 1.5 | 38.1 | Medium-duty merchandise bags, garment covers |
| 200 | 2.0 | 50.8 | Heavy-duty polythene bags, general packaging |
| 250 | 2.5 | 63.5 | Industrial liners, robust shipping bags |
| 300 | 3.0 | 76.2 | Construction dust sheets, heavy refuse sacks |
| 400 | 4.0 | 101.6 | Extra heavy-duty industrial packaging |
| 500 | 5.0 | 127.0 | Specialist protective sheeting, extreme durability |
Film Thickness Conversion FAQ
Everything you need to know about converting plastic film gauge to microns and understanding packaging specifications.
To convert film gauge to microns (μm), multiply the gauge value by 0.254. For example, 100 gauge multiplied by 0.254 equals 25.4 microns.
A ‘mil’ is 1/1000th of an inch. ‘Gauge’ is 1/100th of a mil (so 100 gauge = 1 mil). A ‘micron’ (μm) is 1/1000th of a millimetre. Therefore, 1 mil equals exactly 25.4 microns.
200 gauge is equal to 50.8 microns (or 2 mils). This is a very common thickness for standard heavy-duty polythene bags and general-purpose packaging.
Gauge is a traditional imperial-derived unit still widely used in the packaging industry (especially in the US and UK), while microns (micrometres) are the standard metric unit used globally for precision manufacturing and international trade.