Dropshipping Profit & ROI Calculator

Dropshipping profit guide

Read this guide before you raise your ad budget, because a product that looks profitable in Meta Ads can still lose money once RTO and shipping are counted.

You'll learn how each cost is charged, how RTO and COD change your margin, and how to find your break-even CPA and ROAS. Every example uses the default numbers in the calculator above, so you can check them yourself.

How the Dropshipping Calculator Works

A dropshipping profit calculator turns the numbers you already track into one answer: after every cost, is this product making money?

Your ads dashboard can't tell you that, because it has no idea how many orders were actually delivered. This calculator follows an order from click to cash:

1. Orders generated: what your ads and store produce in a month.
2. Cancellations: orders dropped before dispatch, for example after a failed confirmation call.
3. Dispatched orders: split into COD and prepaid by your order mix.
4. Delivered orders: dispatched orders multiplied by the delivery rate for each payment type. The rest come back as RTO.
5. Revenue and costs: each cost is charged at the stage where it actually happens.

That last step is where most spreadsheets go wrong. Ad spend is paid on every order. Shipping and packing are paid on every dispatched order. Revenue only arrives on delivered orders.

Mix up those three bases and a losing product can look healthy.

How Dropshipping Profit Is Calculated

Net profit is delivered revenue minus everything it cost to get there:

Delivered revenue = delivered orders × average order value Net profit = delivered revenue − product cost − ad spend − forward shipping − RTO shipping − fulfilment − COD fees − payment gateway fees − other per-order costs − fixed costs

Each cost uses its own base:

Revenue is not profit

Revenue tells you how much money moved through your store. Profit is what you keep.

A store doing ₹10 lakh a month in delivered revenue can easily keep less than ₹1 lakh once ads, shipping and returns are paid. Net margin (net profit ÷ delivered revenue) shows whether growth is worth it.

Markup vs margin

Markup is profit divided by cost. Margin is profit divided by selling price. A product bought at ₹400 and sold at ₹1,000 has a 150% markup but only a 60% gross margin.

Always plan ad budgets on margin. Planning on markup makes every product look far more profitable than it is.

How product cost affects contribution margin

Contribution margin is what each order leaves you after its variable costs and before fixed costs. Product cost is usually the largest piece after ads, so small changes matter.

The "Charge product cost on" setting matters here too. If returned units are resold, charge product cost on delivered orders only.

If returns are often damaged, or your supplier bills every dispatched unit, charge it on all dispatched orders.

How RTO Impacts COD Profitability

RTO (return to origin) happens when a COD customer refuses the parcel or can't be reached. By then you have already paid for the ad click, the product pick, the packing and the outbound shipping.

Then you pay again for the parcel to come back, and you collect nothing. That's why delivery rate matters so much for COD sellers: a lower rate cuts revenue and adds costs at the same time.

COD vs Prepaid Orders: What's the Difference?

The main difference between COD and prepaid orders is when the money arrives. Prepaid customers pay at checkout, so most parcels are delivered and the main cost is a gateway fee. COD customers pay on delivery, which lifts conversion but brings more RTO and a flat COD fee.

The last three rows compare an all-COD mix with an all-prepaid mix, keeping every other example value the same. Switching the whole mix to prepaid lifts delivered orders from 700 to 950.

That's why many Indian D2C brands offer a small prepaid discount: it often costs less than the RTO it prevents. Use the COD share and the two delivery-rate fields to test a prepaid incentive before you launch it.

How to Calculate Break-Even CPA

CPA (cost per acquisition) is your ad spend divided by the orders it generated. In Meta Ads this is usually "cost per purchase"; in Google Ads, "cost per conversion".

Break-even CPA is the highest CPA at which you still make zero profit, not a loss. To find it, work out what one generated order is worth before advertising:

Contribution per order (before ads) = AOV × delivered share − product cost − shipping − RTO − fulfilment − COD fee − gateway fee − other costs (each per generated order) Break-even CPA = contribution per order − (fixed costs ÷ orders) CPA headroom = break-even CPA − current CPA

Because delivery rate is built in, break-even CPA is often far lower than sellers expect. In the default example it's ₹703 on a ₹1,499 product.

Positive headroom means you have room to scale into higher CPAs. Negative headroom means every extra order loses money under your assumptions.

How to Calculate Break-Even ROAS

ROAS (return on ad spend) is revenue divided by ad spend. This calculator uses delivered revenue. That's usually lower than the purchase value your ad platform reports, because the platform counts orders that later go RTO.

Break-even ROAS is the ROAS at which net profit is zero:

Break-even ad spend = orders × break-even CPA Break-even ROAS = delivered revenue ÷ break-even ad spend

In the example, current ROAS is 3.32x and break-even ROAS is 1.65x. If break-even ad spend is zero or negative, the product can't break even at any ad cost, and the calculator says so instead of showing a meaningless number.

Why the "1 ÷ margin" shortcut fails for COD stores

Many ROAS calculators use break-even ROAS = 1 ÷ gross margin. On the example product (₹1,499 price, ₹400 product cost, ₹80 shipping) that gives a 68% margin and a break-even ROAS of 1.47x.

The shortcut ignores RTO, failed deliveries and fees. Counting them, the real break-even is 1.65x on delivered revenue.

Meta Ads reports ROAS on every purchase, delivered or not. In those platform terms the same product needs 2.13x just to break even. If you run it at the 1.47x the shortcut suggests, you pay about ₹1,020 per order against a break-even CPA of ₹703, and every sale loses money.

Using the calculator before scaling Meta or Google Ads

1. Pull the last 30 days of orders, AOV and COD share from your store.
2. Get delivery rates by payment type from your courier or shipping aggregator. Use settled numbers, not in-transit.
3. Enter your actual cost per purchase from the ad platform as CPA.
4. Check CPA headroom. Scaling usually raises CPA, so small headroom means little room to grow.
5. Set your ad platform's target ROAS or cost cap using platform-reported numbers, adjusted for your delivery rate.

Rerun the numbers whenever your courier, product cost or COD share changes.

Who This Calculator Is For

• Dropshippers and D2C brands selling on Shopify, WooCommerce or their own store.
• COD-heavy sellers, especially in India, where RTO decides whether a product makes money.
• Media buyers who need a break-even CPA or ROAS target before scaling Meta or Google Ads.

If your numbers show thin or negative headroom, adjust one input at a time to see which lever moves profit most. Want a second pair of eyes? Ask us for a profitability audit.

Frequently Asked Questions