Zapstack

Free tool

Funnel Cost & Email ROI Calculator

Work out what your email list returns each month, what your funnel tool costs per year, and the break-even order count — with sources shown.

ZapstackUpdated September 26, 2026

Step 1 of 3

How big is your email list?

2,500
100

At your list size, the tier you would be paying for

PlatformFree tierEntry paid tierAutomation
Systeme.io2,000 contacts$17/monthYes — on the paid plan
Kit (ConvertKit)10,000 subscribers, sending only$19+/monthYes
GetResponseNo free tierFrom $19/monthYes

On a phone, swipe the table sideways →

What the defaults are — and what they are not

The calculator uses published benchmarks, all editable above: campaign click rate 3.84% and welcome-sequence click rate 16.6% (GetResponse via Stripo, 2025); automation conversion 1.9% (Omnisend, 2024); on-site conversion 2% as a deliberately conservative stand-in. Tier limits checked 13 September 2026 against each vendor's own pricing page.

It is an estimate, not a promise: results depend on list quality, offer and deliverability. If your open rate is half the benchmark, the revenue number is roughly half too — move the sliders and see.