Effiqs
LiveRevOps

CAC, LTV & Payback Calculator

Know your real unit economics: CAC, LTV, LTV:CAC ratio, and payback period in seconds.

Your numbers
LTV : CAC ratio
10.7 : 1
Healthy unit economics
$6,000
CAC
$64,000
LTV
8 mo
Payback
10.7×
LTV:CAC

Directional based on your inputs. Healthy B2B SaaS is roughly a 3:1 LTV:CAC and payback under ~12–18 months.

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About this tool

What the CAC, LTV & Payback Calculator does.

The fastest way to see whether your growth is efficient. Enter spend, new customers, deal size, and churn, and get the four numbers investors and operators actually watch.

What you enter

Sales & marketing spend, new customers, ACV, gross margin, and churn.

What you get

CAC, LTV, LTV:CAC ratio, and CAC payback period, with health flags.

Best for

Founders and RevOps leaders sanity-checking growth efficiency.

How it works

The methodology.

  • CAC = sales & marketing spend ÷ new customers.
  • LTV = (ACV × gross margin) ÷ churn rate.
  • LTV:CAC ratio and payback period benchmarked against healthy B2B SaaS ranges.
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