Herd
Calculator · standalone

Run the math on
your own numbers.

Plug in your AOV, monthly customers, and reward size. The chart breathes as you type. Share the URL with anyone who asks "does this work for me?" — they'll see exactly what you're seeing.

● No signup required● Live as you type● Shareable URL
YOUR FIRST YEAR — NEW REFERRED MRR, NET OF REWARDS
+$-3,600
That's $-300/mo net new revenue, after every reward you'd ever pay out.
YOUR NUMBERS
$/yr
mo
$
0%INDUSTRY AVG · 6%30%
NEW MRR / MO, REFERRED
$200
MONTHLY REWARD COST
$500
NET NEW MRR / MO
$-300
PAYBACK PERIOD
2.5 mo
Reward / monthly contract value
12-MONTH PROJECTION · NET $-3,600
■ revenue — net · cost
Referred revenue vs reward cost over 12 monthsM1M3M5M7M9M11
LTV LIFT (EST.)
+$888/customer
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Numbers update live as you type. No "calculate" button. No email gate. Just math.↑ Try changing the referral rate slider — that's the lever.
How we calculated this

Honest math, no hidden assumptions.

Monthly referred revenue = monthly customers × referral rate × AOV. We assume each referrer brings in roughly one new customer at the same AOV — that's the median in our beta data.

LTV lift uses a 37% multiplier on AOV × lifetime. That's the gap we've consistently observed between referred and non-referred cohorts in 40+ programs we audited before building Herd.

The 12-month projection assumes 3% month-over-month growth from compounding referrals. Conservative — most working programs do more.

If you want a deeper read on any of the assumptions, email hello@herd.co — we'll send back the spreadsheet.