Calculate Area
Area (m2) = Length (m) × Width (m). This is the material area for one rectangular tarp or sheet.
DERFLEX Engineering Tool
Tarpaulin Weight Calculator
Enter length, width, fabric GSM and quantity to estimate area, weight per unit, total kilograms and total pounds for tarpaulin rolls, sheets or finished covers.
Enter Tarpaulin Dimensions
Use meters for length and width, and grams per square meter (GSM) for material weight.
How the Tarpaulin Weight Calculation Works
The calculator converts surface area and GSM into an estimated fabric mass, then multiplies by the number of units.
Calculate kg per Unit
kg/unit = Area × GSM ÷ 1000. A 650 GSM fabric weighs approximately 0.65 kg per square meter.
Calculate Order Weight
Total kg = kg/unit × Quantity. Pounds are calculated from total kilograms using 1 kg ≈ 2.20462 lb.
Important: this is an estimated fabric weight
Actual finished tarpaulin weight can differ because of hems, overlaps, reinforcement patches, webbing, ropes, eyelets, D-rings, seams, tolerances and packaging.
For purchasing, freight or container-loading calculations, use the final production specification or confirm the finished unit weight with the manufacturer.
Tarpaulin Weight Calculator FAQ
Common questions about GSM, area and finished tarp weight.
How do I calculate tarpaulin weight from GSM?
Multiply length by width to get square meters, multiply the area by GSM, then divide by 1000 to convert grams to kilograms.
What does 650 GSM mean for tarpaulin?
650 GSM means the material has a nominal mass of 650 grams per square meter, or about 0.65 kg/m2 before considering finished-product accessories and tolerances.
Does this calculator include eyelets, webbing and hems?
No. The calculator estimates the base fabric mass. Finished weight can be higher when a tarp includes reinforced hems, eyelets, D-rings, ropes, straps, patches or multiple fabric layers.
Can I use the calculator for a tarpaulin roll?
Yes. Enter the roll length and roll width in meters, the specified GSM and the number of rolls to estimate material weight.
Need a confirmed weight for your tarp specification?
Send DERFLEX your dimensions, GSM, quantity and finishing requirements for material selection and quotation support.