Is this calculator specific to Shopify?

The math is ecommerce-specific and works especially well for Shopify stores because it includes the costs Shopify merchants usually need to model: COGS, payment fees, shipping, returns, ad spend, inventory, conversion rate, or repeat purchases depending on the tool.

Should I use gross margin or contribution margin?

Use contribution margin when you are making advertising, discount, or growth decisions. Gross margin is useful, but contribution margin is stricter because it accounts for variable costs like payment fees, fulfillment, shipping, returns, and app costs.

Why does the tool use default values?

Defaults make the calculator useful immediately and show the shape of the result before you enter your own numbers. Replace them with your store's actual numbers before making a final decision.

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Bundle Pricing Calculator

Price ecommerce bundles with product costs, bundle discount, shipping, fulfillment, payment fees, and target margin.

Bundle pricing calculator

Model bundle discounts against combined product cost, extra shipping, fulfillment, and payment fees.

Product A

Price

COGS

Product B

Price

COGS

Product C

Price

COGS

Bundle discount

Target margin

Extra shipping

Fulfillment

Payment fee

Fixed payment fee

Bundle price

$85.85

Bundle profit

$43.06

Bundle margin

50.2%

Standalone total

$101.00

Max target discount

35.7%

If your planned discount is above 35.7%, the bundle misses the target margin unless it raises conversion or repeat purchase enough to compensate.

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About this tool

What this free tool calculates

Use this when building bundles, kits, multipacks, or cross-sell offers. It shows whether the bundle discount is funded by real margin.

How to use the result

The calculator sums standalone prices and COGS, applies the bundle discount, subtracts variable costs, then estimates the maximum discount that still hits your target margin.

A good bundle should raise AOV without making every order less profitable. Compare the bundle result with your free shipping and discount plans.

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Why the calculator stays input-driven

This free ecommerce tool does not guess demand, scrape competitors, or invent benchmarks. Change the numbers to match your store, then use the result to decide whether a product, campaign, discount, or inventory move is worth doing.

Frequently Asked Questions

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