Chirply resources · Reviewed
Compare channel credit across conversion paths. Inspect first-touch, last-touch and linear calculations, then export the inputs and results.
First-touch credit goes to the first recorded touch, last-touch credit to the last, and linear credit is divided equally among recorded touches. Comparing them reveals how the same journeys tell different stories. This calculator keeps every supplied touch, including direct visits, and shows channel totals for each model.
Defaults are illustrative. Calculations run in this browser. Values are kept on this page until you change, reset or reload it.
| Channel | First touch | Last touch | Linear |
|---|---|---|---|
| direct | 0.00 | 240.00 | 80.00 |
| 0.00 | 270.00 | 110.00 | |
| organic | 270.00 | 0.00 | 240.00 |
| paid search | 240.00 | 0.00 | 80.00 |
| referral | 90.00 | 90.00 | 90.00 |
Results are rounded to two decimal places. A zero denominator is shown as unavailable. Keep the cohort and assumptions with your report.
Calculating and downloading a file use the values on this page. Configure and test your actual workflow using the linked setup guides.
First touch: entire path value → its first touch; last touch: entire value → its last touch.
Linear: path value ÷ number of recorded touches; sum each channel's touches across all paths.
Every model allocates the same total conversion value. Calculations use full precision; displayed channel values round to two decimals.
The four illustrative paths total 600 currency units. First touch gives organic 270, paid search 240 and referral 90. Last touch gives email 270, direct 240 and referral 90. Linear gives organic 240, email 110, paid search 80, direct 80 and referral 90. Repeated organic touches each receive their share.
This is a transparent rule-based teaching model. It retains direct touches and repeated channel touches; Google Analytics applies its own direct-traffic exclusions and reporting scope. These outputs are not a reproduction of GA4 data-driven attribution.
A conversion path is one completed conversion with one value. Keep the same observation window, identity rule and currency. Missing touches, consent choices, offline journeys and cross-device gaps change what can be observed.
Credit allocation describes observed paths. It does not establish causal lift, profitability or the budget that will maximize future sales. Review campaign cost and independent evidence before making a budget decision.
Complete every required field and keep counts within the stated range. Related counts must describe the same cohort. If you change a value, calculate again to refresh the results. A zero denominator produces an unavailable rate.
The CSV button appears after a successful calculation. Check your browser's downloads list if the file is not immediately visible. Enable JavaScript for the interactive controls; formulas, examples and field definitions remain readable on this page.
Chirply publishes these explanations and planning tools to help teams define, test and measure their workflows. AI-assisted drafts are checked against the cited product references and documented formulas. Examples are illustrative. Read the review method, explore product capabilities or check current plans.
For a correction, email support@chirply.io with the page address and the specific detail.
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