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The ROAS field guide
Better questions.
Clearer ad decisions.
Understand the return, account for the costs, and check the evidence. Find a practical answer for the decision in front of you.
Read your return
Make the number meaningful before comparing campaigns.
Find your ad allowance
Start with costs, then decide what needs to remain.
Explain a weak result
Check the data, then identify what changed.
Interactive workflow
Use your own inputs
These tools produce reproducible calculations instead of generic performance benchmarks.
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Ad budget pacing calculator
Compare actual spend with a straight-line plan and calculate a month-end projection.
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ACOS and break-even ACOS
Use product price, referral fees and fulfillment costs to find a product-specific ceiling.
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56 guides across 5 topics
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Try a broader metric such as ROAS, margin or refunds.
ROAS fundamentals →
8 guidesHow to calculate ROAS: formula, example & input checklist
Calculate return on ad spend from matching revenue and spend, interpret the result, and avoid common reporting mistakes.
ROAS vs ROI: revenue efficiency and profit are different questions
Compare ROAS with a clearly defined ROI calculation using one worked campaign, and learn which costs each measure includes.
What is a good ROAS? Find your own threshold
Judge ROAS against contribution margin, overhead, customer mix, and the purpose of a campaign instead of copying a benchmark.
ROAS percentage vs multiple: 400% means 4×
Convert ROAS between a ratio and a percentage, distinguish revenue from profit, and avoid percentage-point mistakes.
ACOS vs ROAS: formulas and conversion
Understand the reciprocal relationship between ACOS and ROAS, with worked conversions and a margin-based break-even check.
MER vs ROAS: blended and campaign returns
Calculate a clearly defined blended revenue-to-spend ratio and distinguish it from campaign-attributed ROAS.
Revenue per click: connect click value to ROAS
Derive revenue per click from order value and conversion rate, then compare it with click cost and contribution.
Attributed vs incremental ROAS: credit and causation
Distinguish assigned advertising revenue from estimated additional revenue and understand the role of a counterfactual.
Margins & acquisition costs →
12 guidesBreak-even ROAS: calculate your cost-based advertising floor
Calculate break-even ROAS from order revenue and variable costs, see margin scenarios, and distinguish the floor from a profit target.
Maximum CPA: how much can you afford per order?
Calculate a break-even and target cost per order from revenue, variable costs, and the contribution you need to retain.
Margin vs markup: use the right ROAS cost basis
Avoid confusing margin with markup when estimating an advertising budget, and include costs beyond the product itself.
Fixed vs variable costs in ROAS planning
Separate order contribution from whole-business break-even and show how allocated overhead changes a ROAS planning target.
Discounts, break-even ROAS and allowable CPA
Calculate how a lower selling price changes contribution, acquisition allowance, and the volume needed to preserve contribution.
Shipping and payment fees in break-even ROAS
Account for shipping revenue, carrier costs, packaging, percentage fees, and fixed transaction charges without double counting.
Product-mix ROAS: calculate a blended cost floor
Calculate a blended break-even threshold from actual revenue and contribution instead of averaging product-level ratios.
Target ROAS calculator: retain a contribution margin
Derive a ROAS target that reserves a specified share of revenue after variable costs and advertising, with feasibility checks.
Subscription ROAS: revenue horizons and payback
Choose a clear revenue horizon for subscription advertising and compare realized contribution with acquisition cost.
Tax-inclusive vs tax-exclusive ROAS
See how including collected tax changes a ROAS ratio and how to document a consistent revenue and cost basis.
Canceled orders: reconcile completed-sale ROAS
Reconcile canceled and unpaid orders with advertising revenue without subtracting the same reversal twice.
Expected returns: build a provisional ROAS reserve
Estimate a clearly labeled returns reserve from mature order cohorts and replace forecasts with actual refunds as they arrive.
Traffic & conversion metrics →
10 guidesCPC, CTR and CPM: formulas and their link to ROAS
Understand how impression cost, click-through rate, and cost per click fit together, and why cheap traffic may not be profitable.
Conversion rate and ROAS: match the denominator
Separate click-based, session-based, and lead-based conversion rates and calculate their effect on advertising returns.
Average order value and ROAS: check the extra costs
Calculate AOV and separate revenue gains from the extra costs, discounts, and conversion changes behind larger orders.
CAC vs CPA: customers, orders and acquisition costs
Define customer acquisition cost separately from cost per action or order, with a new-customer example and cost-scope checklist.
Lead generation ROAS: model lead value honestly
Use observed close rates and customer value to model leads, while separating estimates from realized revenue and contribution.
Customer lifetime value and acquisition payback
Build a bounded customer-value model using observed contribution, repeat purchases, and acquisition payback instead of gross revenue alone.
Break-even CPC calculator: an affordable click cost
Calculate an affordable CPC from orders per click and order contribution, then reserve a contribution target before bidding.
Maximum CPM calculator for a target ROAS
Estimate an affordable impression cost using CTR, order rate, and order value, with consistent percentage units.
Required conversion rate calculator for target ROAS
Solve for the required orders-per-click rate from CPC, average order value, and a ROAS target, and check whether the goal is realistic.
Required AOV calculator for a target ROAS
Work backward from acquisition cost or click economics to the order value required for a ROAS goal, then check margin and volume.
Attribution & data quality →
16 guidesRefund-adjusted ROAS: reconcile revenue without subtracting twice
Reconcile gross sales, discounts, and refunds to a defined net revenue figure and compare equally mature order cohorts.
Why ROAS reports disagree: a practical reconciliation checklist
Compare platform and store reports systematically using revenue definitions, attribution, dates, currencies and event-level evidence.
Weighted average ROAS calculator and formula
Calculate aggregate ROAS from total revenue and spend and understand why averaging campaign or daily ratios can mislead.
Attribution windows: why reported ROAS changes
Explain how conversion windows affect reported ROAS and document interaction types and timing before comparing campaigns.
Conversion lag: when recent ROAS is incomplete
Distinguish immature conversion data from finalized performance and compare reporting periods at a consistent age.
Duplicate purchase events: audit inflated ROAS
Reconcile purchase events to orders, inspect transaction identifiers, and distinguish duplicates from multiple valid purchases.
Multi-currency ROAS: align revenue and spend
Calculate ROAS on one currency basis, document exchange-rate assumptions, and separate currency effects from campaign performance.
Weekly ROAS report: a reusable review checklist
Build a reproducible campaign review with revenue, spend, contribution, data maturity, and a clearly stated next decision.
New-customer ROAS: measure first-order acquisition
Define new-customer revenue, choose an explicit spend denominator, and distinguish first-order ROAS from CAC and lifetime value.
Brand vs non-brand ROAS: compare the customer mix
Compare branded and non-branded search performance with explicit grouping rules, customer mix, and incremental-value limitations.
Prospecting vs retargeting ROAS: a fair comparison
Interpret returns from new-audience and prior-visitor campaigns without assuming equal intent or causal impact.
Cohort ROAS: compare customers at the same age
Track revenue from acquisition cohorts over a fixed horizon and avoid comparing mature groups with newly acquired customers.
B2B pipeline ROAS: forecasts are not sales revenue
Distinguish pipeline value, probability-weighted forecasts, and realized revenue when reporting returns from B2B advertising.
Offline sales ROAS: connect leads to purchases
Build a consistent offline sales ROAS report by matching leads, completed sales, acquisition dates, and advertising costs.
UTM tracking for ROAS: connect labels and costs
Use consistent UTM campaign labels while recognizing that URL tags alone do not measure sales or import advertising costs.
ROAS tracking audit: verify events and values
Audit revenue events, order status, currencies, spend scope, and attribution when a ROAS report looks unexpectedly high or low.
Budgets, offers & experiments →
10 guidesMarginal ROAS: evaluate additional advertising spend
Calculate revenue change per added spend and distinguish a before-and-after comparison from a causal incremental return.
Ad budget from a revenue target: a planning model
Translate a revenue objective into a spend scenario, then check margin, conversion assumptions, and the limits of linear scaling.
ROAS sensitivity analysis: test your assumptions
Vary conversion rate, order value, click cost, and contribution margin to understand a campaign model without inventing forecasts.
Low ROAS: diagnose the cause before changing ads
Check measurement, traffic cost, conversion rate, order value, and margins in a logical sequence before selecting an intervention.
ROAS experiments: plan a test you can interpret
Plan a bounded advertising experiment with consistent measurement, cost-aware outcomes, and honest treatment of uncertainty.
Target vs actual ROAS: goals, bidding and results
Understand the difference between an economic requirement, a platform bidding target, and the ROAS actually reported.
Free-shipping thresholds: compare contribution
Evaluate whether a higher basket value covers the shipping subsidy, extra product costs, and possible conversion changes.
Creative-level ROAS: compare more than a ranking
Compare advertising creatives with attention to delivery mix, sample size, conversion delay, and contribution rather than a raw ROAS leaderboard.
Stockouts and ROAS: account for availability
Investigate how unavailable products, substitutions, and changing product mix affect observed advertising returns.
Seasonal ROAS: compare holidays and promotions
Separate calendar changes, discount economics, and conversion timing when interpreting seasonal advertising performance.