Ecommerce
Bundle Pricing Calculator
Add up item costs, set a target margin or markup, and see a bundle price and saving vs buying separately.
Price a product bundle
Bundles lift average order value when the package feels like a bargain without giving away your best margin SKUs. This calculator helps you price a multi-item offer from component costs (and optional target margin) so the bundle ticket is intentional rather than a round number guessed in a spreadsheet. Start from the sum of unit costs, add any shared packaging, then set a bundle price that still clears contribution after payment and marketplace fees. Anchoring against the sum of individual selling prices shows the ‘saving’ shoppers see — useful marketing, dangerous if it erases profit. Cross-check unit economics with product profit and fee drag with marketplace fee. Discount impact on volume lives on discount profitability. Gift-with-purchase and BOGO variants need the free unit costed in, not ignored. Estimates for planning only — not pricing or competition law advice. Keep slow movers out of hero bundles unless clearing stock is the real goal; otherwise the bundle trains customers to wait for a deal on your heroes.
Worked example
Three SKUs cost £4, £6 and £3 (£13 total). Individual RRPs sum to £36. A bundle at £29 shows a £7 ‘saving’ while contribution before fees is £16. A 12% platform fee on £29 (£3.48) leaves about £12.52 — still workable if fulfilment fits. At £24 the fee-adjusted contribution collapses and the deal is mostly theatre.
Limits and assumptions
Ignores cannibalisation of full-price singles and return rates that rise on gift sets. Inventory constraints and shipping dimensional weight are outside the model.
Frequently asked questions
Should the bundle beat the sum of singles?
Usually yes on the ticket shoppers compare — but only if contribution after fees still meets your floor.
How do I treat a free gift in the bundle?
Add the gift’s cost into the bundle cost; do not price as if it were free to you.
What about shipping on heavy bundles?
Raise the bundle price or exclude free-shipping eligibility when dimensional weight jumps.
Can I model BOGO with this?
Treat ‘buy one get one’ as a two-unit cost against one paid price, then check margin.
How often should I revisit bundle prices?
Whenever component costs or fees move, and after each promo that trains a lower anchor.