Estimate void fill material and labor costs per order based on void space, fill type, and packing speed. Compare air pillows, kraft paper, peanuts, and foam costs.
The Void Fill Cost Calculator estimates the material and labor cost of filling empty space in shipping boxes. Void fill protects products during transit but adds cost to every order — typically $0.08–0.50 per order in materials plus 10–40 seconds of packing labor.
Different void fill materials have different cost profiles: air pillows are cheapest at $0.02–0.05 per cubic foot, kraft paper costs $0.05–0.10, packing peanuts cost $0.08–0.15, and custom foam inserts cost $0.15–$1.00+. The optimal choice depends on your void space volume, product fragility, and order volume.
This calculator helps you compare fill types and understand the total cost per order including both materials and the labor time to apply them. By right-sizing your boxes, you can reduce void space and lower these costs significantly. Whether you are a beginner or experienced professional, this free online tool provides instant, reliable results without manual computation. By automating the calculation, you save time and reduce the risk of costly errors in your planning and decision-making process.
Void fill costs add up fast at scale. This calculator reveals the true per-order cost of filling wasted box space, motivating box optimization and helping you choose the most cost-effective fill material. Having a precise figure at your fingertips empowers better planning and more confident decisions. Manual calculations are error-prone and time-consuming; this tool delivers verified results in seconds so you can focus on strategy.
Void Volume (cu ft) = Void Space (cu in) / 1,728 Material Cost = Void Volume × Cost per cu ft Labor Cost = (Seconds to Pack / 3,600) × Hourly Rate Total per Order = Material Cost + Labor Cost Monthly Cost = Total per Order × Monthly Orders
Result: $0.12 per order; $240/month
600 cu in of void space = 0.35 cu ft. Air pillow material cost = 0.35 × $0.03 = $0.01. Labor cost for 20 seconds at $18/hr = $0.10. Total per order = $0.11. Over 2,000 monthly orders, void fill costs $220/month. Switching to kraft paper at $0.08/cu ft would increase material to $0.03 but reduce packing time to 12 seconds, lowering labor to $0.06 — same $0.09 total.
Air pillows: Cheapest material ($0.02–0.05/cu ft), lightweight, requires machine. Best for large voids. Kraft paper: Versatile ($0.05–0.10/cu ft), no machine needed, good cushioning. Best for heavy items. Packing peanuts: Moderate cost ($0.08–0.15/cu ft), messy, being phased out. Foam inserts: Premium ($0.15–1.00+/cu ft), best protection, highest unboxing quality.
At $18/hour, every additional 10 seconds of packing time costs $0.05 per order. If you pack 2,000 orders per month and spend 30 seconds on void fill versus 10 seconds, the extra 20 seconds costs $200/month in labor alone. Automation and simpler fill methods (pre-cut paper packs, air pillow machines) can cut this significantly.
Beyond material and labor, void fill has hidden costs: storage space for fill materials, equipment maintenance, and environmental disposal fees. Air pillow film rolls are compact but the machine needs periodic maintenance. Packing peanuts require significant storage space. Factor these overhead costs into your true per-order calculation.
Air pillows are the cheapest per cubic foot ($0.02–0.05). They require a machine ($500–$3,000) but the film rolls are inexpensive. Kraft paper is similarly affordable and doesn't require a machine. Packing peanuts and foam inserts are the most expensive options.
The amount depends on box size versus product size. A well-fitted box needs minimal fill (just cushioning around the product). An oversized box can need 500–1,000+ cubic inches of fill. Use the packing efficiency calculator to measure your void space.
Yes, recyclable kraft paper, corn starch packing peanuts, recycled cardboard shred, and paper honeycomb are all eco-friendly options. Many consumers prefer sustainable packaging, so eco-friendly fill can improve brand perception while also being cost-competitive.
Automated air pillow or paper dispensing machines make sense above 100–200 orders per day. They reduce packing time from 20–40 seconds to 5–10 seconds per order and produce consistent fill volumes. ROI is typically 3–6 months at volume.
The most effective approach is right-sizing boxes to reduce void space. Beyond that, switch to lower-cost fill materials, automate fill dispensing, and consider poly mailers for products that don't need box protection. Each strategy can save 20–50% on fill costs.
Void fill materials add minimal weight (especially air pillows), so they rarely affect actual weight charges. However, the need for void fill usually indicates an oversized box, which increases dimensional weight charges — a much larger cost impact than the fill material itself.