Upsell & Cross-Sell Calculator
Identify the revenue impact of increasing your 'Attach Rate'. See how selling more accessories or add-ons boosts LTV without new customer acquisition.
Core Product
Upsell Item
Revenue Impact
Zero additional ad spend required.
Growth Opportunity
+$4,500/mo Potential
Current State
You are currently making $4,500 from upsells (15% attach).
Target State
Improving to 30% attach would generate $9,000 total upsell revenue.
Annual Impact
This optimization is worth $54,000 per year in found revenue.
Execution Steps
Enter your Core Product Price and Monthly Sales Volume.
Enter the Price of your Upsell item (Accessory, Warranty, etc.).
Set your Current Attach Rate (%) and Target Attach Rate (%).
The tool calculates the 'Free Money' available in your existing funnel.
Pro Strategy
- Keep the upsell price under 25% of the core product price for maximum conversion (The 'Impulse Zone').
- Offer the upsell at multiple touchpoints: Product Page (Bundle), Cart (Add-on), and Post-Purchase (One Click Upsell).
- Bundling is the most effective way to force a higher attach rate.
Core Concepts
Attach Rate
The percentage of primary product buyers who also purchase the secondary product. (e.g. 20% of Shoe buyers buy Socks).
Cross-Sell vs Upsell
Cross-sell is selling a related item (Fries with Burger). Upsell is selling a more expensive version (Large Burger). This tool models Cross-Sell.
Zero CAC Growth
Revenue from upsells has $0 Customer Acquisition Cost because you already paid to acquire the customer for the core product.
What is Upsell & Cross-Sell Calculator?
This calculator isolates the revenue contribution of secondary items. It projects the incremental revenue gain from improving the 'Attach Rate' metric, highlighting the leverage of cross-selling on existing traffic.
Best For
- • Planning new product accessories.
- • Optimizing checkout flows.
- • Training sales staff on add-ons.
Limitations
- • Assumes constant core sales volume.
- • Does not account for margin differences between core and upsell.
Alternative Methods
Bundle Profit
Analyzing the margin impact of discounting items together.
Cart Abandonment
Recovering lost sales rather than expanding current ones.
Industry Applications
See how this methodology generates real revenue uplift in different sectors.
Electronics Retailer
Thin margins on TVs.
Focused heavily on HDMI cable attach rate.
SaaS Checkout
Flat ARPU.
Added 'Priority Support' check box at checkout ($9/mo).