Referral economics, made explicit.

Choose a reward you can afford. Then test whether the whole program pays for itself. Free calculators with visible formulas and editable assumptions.

01Choose your calculationNo signup
Per-customer economics

Referral reward calculator

Find the combined reward cost ceiling after gross margin, other acquisition costs and a profit reserve. Split it between the referrer and referred customer.

Calculate your reward budget
Whole-program economics

Referral program ROI calculator

Evaluate a fixed period with both rewards, setup and operating costs. Model only the customer profit you believe the program actually caused.

Estimate program ROI

Start with the decision you need to make

Use the reward calculator when you are choosing an offer. Use the ROI calculator when you have a proposed offer and need to budget the program. Both begin with illustrative inputs, work without an account and explain how to avoid counting costs twice.

Prepared by the RefRef team · Method updated October 3, 2026