List Swap Fairness Calculator
Different list sizes? No problem. Enter both lists' size and average open rate to get a fair-swap recommendation.
Your list
Partner's list
Recommendation
1:3 — Ratio Swap
Your effective reach
25,000
Partner's effective reach
9,000
Your reach is about 2.8× their reach. Send 1 promo for them and they send 3 promos for you — the totals balance out.