About the Product Bundle Pricing Calculator
This bundle pricing calculator compares selling up to four products separately with selling them together as a kit or bundle. Enter each item’s selling price and unit cost, then either a bundle discount or a fixed bundle price, and it shows the bundle price, what the customer saves, your profit and margin on the bundle, and how those compare with selling the same items one by one.
It is built for ecommerce stores, retailers, SaaS add-on packages and service providers creating packages. Two extra figures help you decide: the maximum discount you can offer while still hitting a target gross margin, and the sales lift you would need if the bundle simply replaces full-price sales of the same items.
The math uses unit (variable) costs only. If bundling saves you money on packaging, shipping or payment fees, lower the item costs to reflect that — those savings often justify a deeper discount.
With the default inputs, the bundle price is $76.50. Change any value above to recalculate instantly.
How to use the product bundle pricing calculator
- 1Enter the selling price and unit cost of each item in the bundle.
- 2Choose a discount percentage or type a fixed bundle price.
- 3Set the minimum gross margin you are willing to accept.
- 4Compare bundle profit and margin with selling the items separately.
- 5Use the max discount and sales-lift figures to settle on a final price.
Formula and method
S is the sum of the items’ individual selling prices and C the sum of their unit costs. Applying a discount d gives the bundle price; profit is the bundle price minus the combined cost, and gross margin is that profit as a share of the bundle price.
To protect a target margin m, the bundle must be priced at least C ÷ (1 − m), which translates into a maximum discount off the separate total. The sales-lift figure is the worst case where each bundle replaces a customer who would have bought every item at full price: you need (S − C) ÷ (B − C) bundles for every full-price set to earn the same profit.
- S
- Total of individual selling prices
- C
- Total unit cost of the items in the bundle
- d
- Bundle discount as a decimal
- B
- Bundle price
- m
- Target gross margin as a decimal
Worked examples
Three-item kit at 15% off
The items sell for $90 separately and cost $34. At 15% off the bundle is $76.50, earning $42.50 (55.6% margin) versus $56 (62.2%) separately. To keep a 40% margin the bundle can go as low as $34 ÷ 0.6 = $56.67, a 37% discount. If bundles only replace full-price sales you need 31.8% more of them.
Fixed $99 bundle of four items
Adding a $25 item (cost $10) brings the separate total to $115 and cost to $44. A $99 bundle saves the buyer $16 (13.9%) and earns $55, a 55.6% margin. The lowest price for a 40% margin is $44 ÷ 0.6 = $73.33, so the discount could go as deep as 36.2%.
Deep 45% discount breaches a 40% margin
At 45% off, the $90 kit sells for $49.50 and earns only $15.50 — a 31.3% margin, below the 40% target. Replacing full-price sales would need 261% more volume ($56 ÷ $15.50 − 1) to break even on profit.
Frequently asked questions
How do you price a product bundle?+
Add up the individual prices, decide a discount large enough to be noticed, and check the bundle’s margin against the combined unit cost. Make sure the price never falls below cost ÷ (1 − target margin).
What is a good bundle discount?+
It depends on margin, not convention. The deepest discount that still holds a target margin m is 1 − C ÷ ((1 − m) × S). A kit costing $34 that sells for $90 separately can go to 37% off and keep a 40% margin; if the same kit cost $60, the limit would be 0% because separate sales already earn only 33%.
Do bundles increase profit?+
Bundles add profit when they raise average order value by including items customers would not have bought otherwise, or clear slow-moving stock. If they only discount purchases that would have happened anyway, they reduce profit per order.
What is the difference between pure and mixed bundling?+
Pure bundling sells items only as a package. Mixed bundling offers both the bundle and the individual items, letting the discount nudge buyers up while still serving those who want one product. Most ecommerce stores use mixed bundling.
Should shipping savings be included?+
Yes. If one bundle ships in a single package instead of three, the shipping and packaging saved per order is real margin. Reduce the item unit costs by that saving to see the true bundle margin.