VKSTech
11 free calculators built from real flexible packaging plant experience. Film roll weight, GSM ↔ micron, metalliser capacity, converting capacity, minimum manpower and more. No login required.
Calculate exact roll weight for PET, BOPP, CPP, LDPE or paper from length, width and thickness.
Reverse calculation — find how many metres are in a known-weight roll.
Estimate outer diameter for storage, handling and machine loading decisions.
Convert between GSM and micron for PET (1.38), BOPP (0.91), CPP (0.90) and more.
Quick yield check for any converting or metallising process.
Measure how much of available shift time the machine was actually running.
Convert material cost from ₹/kg into ₹/sqm for quoting and comparison.
Three-step metalliser capacity: cycle time, rolls per day, then tonnes per day.
Calculate actual and equivalent conversion cost with product-mix difficulty factors.
Model multiple machines, speeds and efficiencies to find true plant capacity and bottleneck.
Same formula as the Man Power app — calculate minimum headcount with relief and buffer.