Amazon Advertising Calculator

    Amazon Sponsored Products lives or dies on ACOS, TACOS, ROAS, and breakeven ACOS. Enter selling price, product and fulfillment costs, referral percent, ad spend, ad sales, organic sales, total orders attributed, and clicks to see ACOS vs breakeven, TACOS including organic, cost per click, conversion rate, and profit after ads. Use green under breakeven, yellow near breakeven, red over breakeven zones to kill or scale campaigns.

    Instant calculations · Editable fee assumptions · Export-ready results

    Inputs

    Values update results instantly. Adjust fee assumptions to match your seller dashboard.

    Product

    USD

    Amazon listing price.

    Costs

    USD

    Sourcing cost per unit.

    USD

    FBA or FBM per unit.

    Amazon fees

    %

    Category referral percent.

    Ad spend

    USD

    Total ad spend in period.

    Ad results

    USD

    Revenue from ads in period.

    USD

    Revenue from organic in period.

    Orders from ads.

    Total ad clicks.

    Results

    Live estimates based on your inputs and editable fee assumptions.

    ACOS %

    25.0%

    Ad spend divided by ad sales.

    TACOS %

    15.0%

    Ad spend divided by total revenue.

    ROAS

    4

    Return on ad spend multiplier.

    Average CPC

    $0.60

    Spend per click.

    Ad conversion rate %

    16.0%

    Orders divided by clicks.

    Ad cost per order

    $3.75

    Spend per order.

    Breakeven ACOS %

    35.0%

    Max ACOS before losing money.

    Pre-ad profit margin %

    35.0%

    Margin before ads.

    Total profit after ads (period)

    $399.60

    Total revenue minus COGS, fees, ad spend.

    Profit per order after ads

    $4.99

    Per ad order after all costs.

    What this means

    Yellow: ACOS 25.0% near breakeven 35.0%. Profitable but thin. ROAS 4.0x, TACOS 15.0%, CPC $0.60, conversion 16.0%. Optimize to push ACOS lower.

    Ad sales, organic, ad cost, and profit split

    Interactive breakdown of fees, costs, and remaining profit.

    Distribution

    • Ad sales
      $1,200.00
      44.5%
    • Organic sales
      $800.00
      29.6%
    • Ad spend
      $300.00
      11.1%
    • Profit after ads
      $399.60
      14.8%

    Total $2,699.60 · 4 segments · interactive

    Line-item breakdown

    Dollar amounts, share of revenue, and visual proportion.

    Total revenue (ad+organic)
    $2,000.00
    ACOS
    25.0%
    TACOS
    15.0%
    ROAS
    4
    Avg CPC
    $0.60
    Conversion rate
    16.0%
    Cost per order
    $3.75
    Referral per unit
    $3.75
    Contribution per unit pre-ads
    $8.74
    Pre-ad margin (breakeven ACOS)
    35.0%
    Profit after ads (period)
    $399.60

    Assumptions used

    • • Total revenue $2000.00 = ad $1200.00 + organic $800.00
    • • ACOS 25.0% = spend $300.00 ÷ ad sales $1200.00
    • • Breakeven ACOS 35.0% = contribution $8.74 ÷ price $24.99

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    How it works

    Methodology & formulas

    This calculator is transparent by design. Review the steps and formulas so you can trust the estimate and adjust assumptions when your dashboard differs.

    Calculation steps

    1. 1TotalRevenue = adSales + organicSales.
    2. 2ACOS = adSpend / adSales ×100.
    3. 3TACOS = adSpend / totalRevenue ×100.
    4. 4ROAS = adSales / adSpend.
    5. 5AvgCPC = adSpend / adClicks.
    6. 6Conversion = orders / clicks ×100.
    7. 7ReferralPerUnit = salePrice × referral%.
    8. 8ContributionPerUnit = salePrice − productCost − fulfillmentCost − referralPerUnit.
    9. 9ContributionMargin% = contribution / salePrice ×100 = breakeven ACOS.
    10. 10Estimated total units in period = totalRevenue / salePrice.
    11. 11Total COGS+fees = (product + fulfillment + referralPerUnit) × estimatedUnits.
    12. 12ProfitAfterAds = totalRevenue − totalCogsFees − adSpend.

    Formulas

    • ACOS = adSpend ÷ adSales ×100
    • TACOS = adSpend ÷ (adSales+organicSales) ×100
    • ROAS = adSales ÷ adSpend
    • CPC = adSpend ÷ clicks
    • ConvRate = orders ÷ clicks ×100
    • Breakeven ACOS = (salePrice − product − fulfillment − referral) ÷ salePrice ×100
    • ProfitAfterAds = totalRevenue − (product+fulfillment+referral)×units − adSpend

    Important assumptions

    • Total revenue = adSales + organicSales.
    • ACOS = adSpend / adSales ×100 when adSales>0.
    • TACOS = adSpend / totalRevenue ×100 when totalRevenue>0.
    • Average CPC = adSpend / adClicks.
    • Conversion rate = totalOrders / adClicks ×100.
    • Cost per order = adSpend / totalOrders.
    • Product cost and fulfillment per unit derived from inputs; total orders attributed influences total product and fee cost for ad sales portion, but for breakeven we use per-unit margin.
    • Referral fee per unit = salePrice × referralFeePercent.
    • Per-unit contribution pre-ads = salePrice − productCost − fulfillmentCost − referralFee.
    • Breakeven ACOS = contribution margin percent before ads = contribution / salePrice ×100.
    • Total profit after ads = totalRevenue − (productCost+fulfillment+referral)×estimated total units from totalRevenue/salePrice − adSpend.

    Worked example

    $24.99 product with 15% referral and $300 ad spend

    $24.99 sale, $8 product, $4.50 fulfillment, 15% referral, $300 ad spend, $1200 ad sales, $800 organic, 80 orders, 500 clicks.

    Total revenue $2000 (1200 ad +800 organic). ACOS 300/1200=25%. TACOS 300/2000=15%. ROAS 4x. Referral per unit $3.75, contribution per unit $24.99-8-4.50-3.75=$8.74 margin 35%. Breakeven ACOS 35%. Actual ACOS 25% below breakeven profitable green. CPC $0.60, conversion 16%, cost per order $3.75. Estimated units 2000/24.99=80. COGS+fees $16.25×80=$1300, profit after ads $2000-1300-300=$400 total, $5 per order after ads.

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