LTV/CAC

The calculator uses the numbers you enter. With 80 ARPU USD, 60 margin %, 18 months, 400 CAC USD, 8 expansion USD, 15 maintain USD the result is 1.85x | $738.00. This is not a blog SaaS model.

This is not a blog SaaS model. MRR bridge is on MRR bridge.

Results

Enter data and click Calculate.

How it works

LTV/CAC in this calculator is LTV from ARPU, margin and months, then the ratio to CAC. With 80 ARPU USD, 60 margin %, 18 months, 400 CAC USD, 8 expansion USD, 15 maintain USD the result is 1.85x | $738.00.

LTV = ARPU × margin × life + expansion × life − maintain × life. ratio = LTV / CAC. The formula uses CAC and ARPU.

1.85x | $738.00 is not a blog SaaS model. Another set of numbers gives 0.77x | $246.00, and a further set gives 3.23x | $1,680.00. Empty scenario fields do not change the result.

MRR bridge answers a different question. NRR does too. Here 80 ARPU USD, 60 margin %, 18 months, 400 CAC USD, 8 expansion USD, 15 maintain USD leave 1.85x | $738.00.

Type 80 ARPU USD, 60 margin %, 18 months, 400 CAC USD, 8 expansion USD, 15 maintain USD and click Calculate. Two more ready sets sit under the form: 0.77x | $246.00 and 3.23x | $1,680.00.

Other numbers on the same labels move the result. The first example gives 1.85x | $738.00.

Formula

LTV = ARPU × margin × life + expansion × life − maintain × life. ratio = LTV / CAC.

How to use

Type 80 ARPU USD, 60 margin %, 18 months, 400 CAC USD, 8 expansion USD, 15 maintain USD.
Leave the scenario fields empty if you do not have those numbers.
Click Calculate. This set shows 1.85x | $738.00.
The second example under the result is 0.77x | $246.00, the third 3.23x | $1,680.00.
This is not a blog SaaS model.

LTV/CAC = 1.85x | $738.00

With 80 ARPU USD, 60 margin %, 18 months, 400 CAC USD, 8 expansion USD, 15 maintain USD the result is 1.85x | $738.00. This is not a blog SaaS model.

LTV/CAC: LTV/CAC is this calculator's result. The first example is 1.85x | $738.00.
CAC: The formula includes CAC. The second example gives 0.77x | $246.00.
ARPU: The formula includes ARPU. The second example gives 0.77x | $246.00.

Examples

Example 1

80 ARPU USD
60 margin %
18 months
400 CAC USD
8 expansion USD
15 maintain USD

1.85x | $738.00

With 80 ARPU USD, 60 margin %, 18 months, 400 CAC USD, 8 expansion USD, 15 maintain USD the result is 1.85x | $738.00. This is not a blog SaaS model.

Example 2

50 ARPU USD
55 margin %
12 months
320 CAC USD
5 expansion USD
12 maintain USD

0.77x | $246.00

With 50 ARPU USD, 55 margin %, 12 months, 320 CAC USD, 5 expansion USD, 12 maintain USD the result is 0.77x | $246.00.

Example 3

120 ARPU USD
65 margin %
24 months
520 CAC USD
12 expansion USD
20 maintain USD

3.23x | $1,680.00

With 120 ARPU USD, 65 margin %, 24 months, 520 CAC USD, 12 expansion USD, 20 maintain USD the result is 3.23x | $1,680.00.

Related calculators

Common questions

What do you get from 80 ARPU USD, 60 margin %, 18 months, 400 CAC USD, 8 expansion USD, 15 maintain USD?

1.85x | $738.00. This is not a blog SaaS model.

What about the second example?

0.77x | $246.00.

What about the third example?

3.23x | $1,680.00.

Is 1.85x | $738.00 a blog SaaS model?

No. It is the result from the numbers you enter.

Do empty fields change 1.85x | $738.00?

No. Empty scenario fields do not change the result.

How is this different from MRR bridge?

That calculator answers another question. Here LTV/CAC stays at 1.85x | $738.00.

Does a comma in the number work?

Yes. A comma and a dot mean the same in a number field.

Why is there a currency in 1.85x | $738.00?

The header label is usually USD. Another currency changes the label, not the amount.

Do 50 ARPU USD, 55 margin %, 12 months, 320 CAC USD, 5 expansion USD, 12 maintain USD give 0.77x | $246.00?

Yes. That is the second example under the form.

Knowledge sources

Agent cost is a sketch from your rates. Below are EU, OECD and NIST AI frames, not a contract quote.

Page updated in 2026.