Configure-to-Order & Product Configuration calculator
Option Attach Rate Calculator
Option attach rate measures the percentage of eligible configured orders that include a specific option, accessory, or upgrade. Product managers, sales operations, and configure-to-order (CTO) teams use it to see how often a configurable feature actually gets selected versus how often it could be. A rising attach rate signals strong demand mix and bundling pull-through, while a flat or falling rate flags pricing, packaging, or configurator-UX problems. Because options often carry the richest margin in a CTO catalog, even a few points of attach rate moves real revenue.
What this calculator does
- Calculate how often a specific option, accessory, or package is selected on configured orders.
- tracking option adoption and demand signals
- It computes the percentage of eligible configured orders that selected a given option and the point gap to your target attach rate.
Formula used
- Option Attach Rate = configured orders with the option selected ÷ eligible configured orders × 100
- Gap to target = Option Attach Rate - target option attach rate
Inputs explained
- Configured orders that selected this option:
- Eligible configured orders in the period:
- Target option attach rate:
How to use the result
- Use it when reviewing option performance for a model line, a quarter, a region, or after a price or bundle change.
- It treats every eligible order equally and ignores order value, so a high attach rate on low-ticket orders can mask weak revenue capture.
Common questions
- How do you calculate option attach rate? Divide configured orders that selected the option by eligible configured orders, then multiply by 100. With 138 selections out of 520 eligible orders, attach rate is 26.54%.
- What is a good option attach rate? It depends on the option. Core upgrades often run 40-70%, while niche or premium options may be healthy at 10-20%. Compare against your target — here the 30% target is missed by 3.46 points.
- What counts as an eligible configured order? Only orders for products where the option could be selected. Exclude models or variants where the option is unavailable or standard, or the rate will be understated.
- Attach rate vs take rate — are they the same? They are used interchangeably in most CTO shops. Both express how often an optional item is chosen out of the eligible base. Some teams reserve take rate for a single SKU and attach rate for bundled add-ons.
- Why is my attach rate below target? Common drivers are the option being buried in the configurator, an unattractive price step, missing default selection, or sales reps not surfacing it. A 3.46-point gap like the example usually points to packaging or visibility, not demand.
Last reviewed 2026-05-12.