Tools · Retention calculator

What is one more second order worth?

Enter five numbers from your store. See what a higher second order rate adds in orders, revenue and margin. A simple model, no sign-up.

  • 5 inputs
  • 1 open formula
  • 0 sign-ups
Calculator

Your store, your numbers.

Move a slider or type a number. The results update as you go.

Your inputs

Filled in with example numbers. Replace them with your own.

First-time buyers, not all orders.

Revenue per order, in euros.

Revenue minus product cost, as a share of revenue.

Share of new customers who order again within 90 days. How to measure your second order rate

Orders after the first one, in their first 12 months. At least 1.

Ads and first-order discounts per first-time buyer. Leave empty to skip.

Now60second orders per month20% of 300 new customers
If your second order rate rises by
Extra margin per year, at full speed€6,480Second order rate 20% → 25%
Extra returning customers / month
15
Extra orders / month
30
Extra revenue / month
€1,200
Extra margin / month
€540

Reached once a full year of customers has come through. Year one builds up slower, see the chart.

+5 points: about €6,480 extra margin per year, or 21 extra new customers a month.

All three side by side
Extra+3 pts+5 pts+10 pts
Orders / month183060
Revenue / month€720€1,200€2,400
Margin / month€324€540€1,080
Orders / year216360720
Revenue / year€8,640€14,400€28,800
Margin / year€3,888€6,480€12,960
Extra margin added up over the first 12 months
Extra margin added up over the first 12 months. After 12 months: €3,510136912Month

After 12 months: €3,510

  • Your pick (+5 pts)
  • +10 pts, for scale

Lower than the yearly figure: customers from month 11 have barely had time to come back.

Acquisition equivalent

To earn the same margin from new customers instead, you’d need about 21 extra new customers per month.

At €35 each, that’s €750 a month, or €9,000 a year.

Assumes those new customers behave like your current ones.

A simplified model with your inputs. Not a forecast, and not a promise of what any tool will achieve.

Waitlist · in development

Want Oftenflow to work on this number?

Oftenflow is an AI agent for Shopify stores, still in development. It looks at every first order and proposes a reminder when a product is likely about to run out.

You approve, your own email tool sends. We don’t promise a lift. You’d see the effect in your own cohorts.

See how it works →

Planned: 30% off for the first 100 stores. One email when your invite is ready, no newsletter.

How we calculate this

A simple model, in plain sight.

This calculator is a simplified model with your own inputs. It shows the size of the lever, not what will happen.

The formula
extra returning customers / month
= new customers × lift in points
extra orders / month
= extra returning customers × orders per returning customer per year
extra revenue / month
= extra orders × average order value
extra margin / month
= extra revenue × gross margin
acquisition equivalent
= extra margin ÷ (order value × margin × (1 + second order rate × orders per returning customer))

In plain language

  1. We take your new customers per month and apply the lift. 300 customers × 5 points = 15 more people who come back.
  2. Each of them places the number of orders per year you entered. 15 × 2 = 30 extra orders a month.
  3. Orders × order value gives revenue. Revenue × gross margin gives margin.
  4. The monthly figures hold once a full year of customers has come through. Before that, it builds up.
  5. For the chart, each returning customer’s orders are spread evenly over their first 12 months.
  6. For the acquisition equivalent, we ask how many new customers bring the same margin in their first year, at your current rates.

What this model assumes

  • A repeat order is worth as much as a first order.
  • The lift applies to all new customers, from the first month.
  • No costs for the emails, discounts or tools that would create the lift.
  • Value after a customer’s first year is left out, so the long-term effect is higher than shown.
  • No seasonality, refunds or returns.
  • Lifts of 3, 5 and 10 points are examples, not benchmarks.
Waitlist · in development

Get an invite when we open the doors.

Planned: 30% off for the first 100 stores. One email when your invite is ready, no newsletter.

  • Plans from €29 a month, never per contact
  • Works with the email tool you already use
  • No card, no commitment
Example from the Oftenflow app: overnight the agent read new orders, updated buying rhythms and wrote drafts.
Join the waitlist