Packaging Calculator

Convert units, calculate weight & pricing, estimate pieces per kg, and plan sachet nylon roll production — all in one place.

Unit Converter

Convert between mm, cm, inches, feet, and yards.

Value

From

Material Type

Product Type

Width (mm)

Gusset (mm) — optional

Length / Height (mm)

Thickness (microns)

Thickness (gauge)

Optional — pricing & projections

Quantity (pcs)

Price per KG (₦)

Projected KG

Formula: Weight (g) = ActualWidth(mm) × 2 × Length(mm) × Thickness(µm) × Density ÷ 1,000,000 | ActualWidth = Width + Gusset × 2

1 micron = 4 gauge | Waste factor: 5%

Sheet pieces/kg uses doubling rule: (1000 ÷ gram) × 2

Results are engineering estimates — validate with production trials.

How to use our Packaging Calculator

Our advanced calculator is designed for flexible packaging manufacturers, distributors, and buyers. Whether you are dealing with LDPE, HDPE, or LLDPE materials, this tool helps you get accurate production estimates.

General Packaging: Calculate unit weight in grams, pieces per kilogram, resin requirements, and pricing. Enter width, length, thickness, and optionally a gusset value to get exact results. Supports bags, rolls, and sheets.
Sachet Rolls: Specifically designed for pure water and beverage sachet rolls. Estimate total pouches, bags per roll, and expected efficiency for plain vs printed nylon.
Quick Estimator: Already know how much one piece weighs? Enter the gram value (from a scale) to instantly find out how many pieces make 1 kg. Enter a KG price to get the price per piece, or enter a piece price to find the KG price — no dimensions required.
Unit Converter: Quickly switch between Millimeters (mm), Centimeters (cm), Inches, Feet, and Yards.

Understanding Thickness

We support both Microns and Gauge. Standard conversion is 1 Micron = 4 Gauge. Most pure water sachets range between 50-60 microns, while industrial bags may go up to 200 microns.

Loss-Adjusted Estimates

Real-world production involves waste. Our calculator provides two sets of results: "Clean" (theoretical maximum) and "Loss-Adjusted" (accounting for standard 5% production waste factor), helping you price more accurately.

Gusset Support

Some bags have side gussets that expand the actual width. In the General Packaging tab, you can optionally enter a gusset value (per side). The calculator uses Actual Width = Width + Gusset × 2 in the weight formula for accurate results.

Quick Gram-Based Pricing

If you already have a piece weighed on a gram scale, simply enter that weight in the Quick Estimator tab. The tool calculates pieces per KG and lets you convert between KG price and per-piece price in either direction.

Sachet Nylon Roll Formula

For sachet rolls, we use a specialized formula considering the density of LDPE (0.92 g/cm³) and standard pouch dimensions.

Roll Length = Weight ÷ (Width × Thickness × Density)

This helps in verifying supplier claims and planning your monthly material requirements efficiently.

Loading page...

How to use our Packaging Calculator

General Packaging: Calculate unit weight in grams, pieces per kilogram, resin requirements, and pricing. Enter width, length, thickness, and optionally a gusset value to get exact results. Supports bags, rolls, and sheets.

Sachet Rolls: Specifically designed for pure water and beverage sachet rolls. Estimate total pouches, bags per roll, and expected efficiency for plain vs printed nylon.

Quick Estimator: Already know how much one piece weighs? Enter the gram value (from a scale) to instantly find out how many pieces make 1 kg. Enter a KG price to get the price per piece, or enter a piece price to find the KG price — no dimensions required.

Unit Converter: Quickly switch between Millimeters (mm), Centimeters (cm), Inches, Feet, and Yards.