35 free calculators · no signup · by Causality Engine
Free Marketing ROI Calculators for Shopify Brands
Stop trusting platform ROAS. See your real numbers.
Meta, Google, and TikTok each claim the same sales. Add them up and you “sell” far more than Shopify recorded. These 35 free tools reconcile the numbers, expose double-counting, and tell you what's actually profitable.
Meta + Google report
€300,000
Shopify actually recorded
€210,000
Over-reported
−30%
Illustrative example — run your own numbers in seconds.
Instant, in-browser
No login or email
35 tools + glossary
Built for Shopify/DTC
Most popular
ROAS Reconciliation CalculatorReconcile Meta, Google, and Shopify ROAS to expose over-attribution and double-counted revenue. Calculate true ROAS, break-even ROAS, MER, and profit.Open Break-Even ROAS CalculatorCalculate the exact ROAS you need to break even from your gross margin — plus the target ROAS and max CPA to hit your profit goal on every order.Open Blended ROAS & MER CalculatorCalculate blended ROAS and MER across every channel from total revenue and ad spend — the single, un-double-countable number that shows real efficiency.Open Attribution Overlap CalculatorSee how much Meta and Google double-count the same conversions. Calculate attribution overlap, de-duplicated revenue, true ROAS, and wasted ad spend.Open
Attribution forensics nobody else gives away
Most “ROAS calculators” just divide revenue by spend. These dig into why your platforms disagree — overlap, view-through pollution, mismatched windows, signal loss, click fraud.
Attribution & Tracking
(13)ROAS Reconciliation CalculatorReconcile Meta, Google, and Shopify ROAS to expose over-attribution and double-counted revenue. Calculate true ROAS, break-even ROAS, MER, and profit.Attribution Overlap CalculatorSee how much Meta and Google double-count the same conversions. Calculate attribution overlap, de-duplicated revenue, true ROAS, and wasted ad spend.View-Through Attribution ImpactMeasure how much view-through conversions inflate your ROAS. Compare click-only versus view-through performance and find your real return on ad spend.Manual Attribution Time WasteCalculate the annual cost of manual attribution and reporting. See labor cost, opportunity cost, error impact, and the ROI of automating the work.Platform Reporting ReconciliationReconcile ad platform revenue against Shopify's source of truth. Quantify reporting discrepancies, platform trust scores, and the numbers you can rely on.UTM Coverage Gap CalculatorFind how much traffic and revenue you lose to missing UTM tags. Calculate UTM coverage, dark traffic, attributable revenue lost, and time saved by automating.Attribution Window DiscrepancyCompare 1-day, 7-day, and 28-day attribution windows across Meta, Google, and Shopify. Quantify window-driven discrepancies and find the optimal setting.Customer Journey Value CalculatorValue each touchpoint across the customer journey. Calculate assisted revenue, true channel contribution, and where your conversions really come from.Server-Side Tracking ROI CalculatorEstimate the ROI of server-side tracking and Meta CAPI. Calculate recovered conversions, revenue regained from signal loss, and payback period.View-Through Attribution PollutionQuantify how view-through conversions pollute your attribution data. Separate real click-driven revenue from inflated view-through credit across platforms.Click Fraud Waste CalculatorEstimate how much of your ad budget is lost to click fraud and invalid traffic. Calculate wasted spend, fraudulent clicks, and recoverable budget.Break-Even ROAS CalculatorCalculate the exact ROAS you need to break even from your gross margin — plus the target ROAS and max CPA to hit your profit goal on every order.Blended ROAS & MER CalculatorCalculate blended ROAS and MER across every channel from total revenue and ad spend — the single, un-double-countable number that shows real efficiency.
E-Commerce Finance
(13)Break-Even Point CalculatorFind exactly how many units and how much revenue you need to break even. Calculate your break-even point, contribution margin, and target-profit volume.Cash Flow Runway CalculatorSee how many months of runway your cash and margins give you. Calculate burn rate, runway, and the revenue you need to stay cash-flow positive.Return Rate Impact CalculatorMeasure how product returns erode your profit. Calculate the true cost of returns, net margin after returns, and the break-even return rate for your store.Multi-Channel Budget OptimizerAllocate ad budget across Meta, Google, and TikTok by performance. Calculate optimal spend, blended ROAS, and the cost of misallocated budget.Product Launch Viability CalculatorPressure-test a product launch before you spend. Calculate launch profitability, break-even volume, required ROAS, and overall financial viability.Discount & Promotion Profit CalculatorSee whether a discount actually makes money. Calculate margin impact, the extra units needed to offset a promo, and the profit-maximizing discount depth.Contribution Margin CalculatorCalculate contribution margin per order and your break-even volume from price, variable costs, and fixed costs — the profit each sale really adds.LTV:CAC Ratio & Payback CalculatorCalculate customer lifetime value, your LTV:CAC ratio, and CAC payback period to see whether your acquisition spend actually pays back, and how fast.AOV & Free-Shipping Threshold CalculatorCalculate your average order value and a data-backed free-shipping threshold to nudge bigger carts without killing conversion or your margin.Shopify Fee CalculatorCalculate your true Shopify costs — payment processing, transaction fees, and plan price — and your effective fee rate as a percentage of revenue.Profit Margin & Markup CalculatorCalculate gross profit, profit margin, and markup from cost and price — and stop confusing margin (profit over price) with markup (profit over cost).Repeat Purchase Rate CalculatorCalculate your repeat purchase rate from total and returning customers, and see what share of demand comes from loyal buyers who cost nothing to re-acquire.Abandoned Cart Recovery ROI CalculatorCalculate the revenue your abandoned-cart flow can recover from cart volume, AOV, and recovery rate — and the net gain after your recovery tool cost.
Paid Media Metrics
(6)CPC CalculatorCalculate your cost per click from ad spend and clicks, and see how many clicks your budget buys — the starting point for every paid-media efficiency check.CPM CalculatorCalculate CPM — the cost to reach 1,000 impressions — from ad spend and impressions, and see the reach your budget buys for awareness campaigns.CPA CalculatorCalculate your cost per acquisition from ad spend and conversions, then compare it to your break-even CPA to see whether your campaigns are actually profitable.CTR CalculatorCalculate click-through rate from clicks and impressions to gauge ad creative and targeting relevance, and spot where your paid funnel really leaks.Conversion Rate CalculatorCalculate your conversion rate from conversions and visitors, and see how small CR gains compound into revenue without buying a single extra click.Email Marketing ROI CalculatorCalculate email campaign revenue, ROI, and revenue per email from sends, conversion rate, and AOV — and see why owned media beats paid on returns.
Inventory & Operations
(3)Inventory Reorder Point CalculatorNever stock out or over-order again. Calculate your reorder point, safety stock, and economic order quantity from lead time, demand, and variability.3PL vs In-House Fulfillment CalculatorCompare the true cost of 3PL versus in-house fulfillment. Calculate cost per order, break-even volume, and which model maximizes your margin.Safety Stock CalculatorCalculate safety stock and reorder point from your demand and lead-time variability, so you avoid stockouts without tying up cash in dead inventory.
Why your ad platforms disagree with Shopify
Every platform counts conversions with its own attribution window and view-through rules, so the same order gets credited two or three times. Sum the dashboards and the math stops matching reality.
These calculators give you a fast, transparent way to reconcile those numbers, find your true ROAS, and stop reallocating budget on inflated reporting. When you want it automated in real time, that's what Causality Engine does.