Tool
CAC : LTV Ratio Health Check
Score your unit economics in one chart. Enter your CAC and LTV. We'll plot you on a gauge, compare to industry benchmarks, and tell you if you're under-spending, over-spending, or in the healthy zone.
Your Unit Economics
Blended cost to acquire one paying customer
Use gross-profit LTV, not revenue LTV
Sets the benchmark band shown in the metric tile
Enter your CAC and LTV to see the health gauge
CAC : LTV Ratio
0.0×
Set inputs to see verdictWhat your ratio means
Every band has a different next move — here's how to act on yours.
Below 3:1?
Cut CAC before scaling spend. Look at: Quality Score, landing-page conversion, audience targeting precision. Adding spend at a broken ratio just multiplies the loss — fix the funnel first.
At 3-5:1?
The sweet spot. Now's the time to push spend until you find the new equilibrium. Test +20% on top campaigns weekly — track the ratio drop and stop when it slips below 3:1.
Above 5:1?
Signal you have room to spend more. Test new channels, broader audiences, or higher bids on top performers. Hyper-efficient ratios usually mean a competitor is about to outspend you in the categories you're avoiding.
Frequently asked questions
Why is 3:1 the benchmark?
At 3:1, every $1 of CAC returns $3 of LTV — that's enough to cover CAC, COGS, and overhead while leaving margin. Below 3:1 you're betting on retention to bail you out, which is fine for a quarter but punishing if churn rises.
Does payback period matter as much as ratio?
Yes — ratio shows lifetime health, payback shows cash flow risk. Aim for 12-month payback or better even at 3:1+. A 4:1 ratio with 24-month payback can still bankrupt you mid-scale because the cash isn't back in time to fund the next cohort.
How does industry change the benchmark?
B2B SaaS often tolerates lower ratios with longer payback because of high contract values and strong retention. DTC requires faster payback because retention is shorter and inventory cash is tied up. Marketplaces typically demand 4:1 because both sides of the network need subsidising.
What about customer cohort variance?
Average ratios hide weak channels. Pace's Portfolio dashboard breaks ROAS, CPA, and conversion volume out by ad account, campaign, and ad group across Google, Meta, TikTok, LinkedIn, and Microsoft — so you see which platforms are dragging the blend on the ad side. A healthy 4:1 blended often hides a 1.5:1 channel bleeding you out while a 7:1 channel masks the loss.
Should I track ratio monthly?
Yes — quarterly is too slow. Pace tracks platform-side ROAS, CPA, and conversion volume daily across every connected ad account. That's the ad half of CAC tracked in real time, even before you stitch in revenue from your billing system. Catching a 0.3-point drift a week into a quarter is fixable; finding out two months in usually means a write-off.
See the ad-side of your unit economics every day.
Pace's Portfolio dashboard breaks ROAS, CPA, and conversion volume out across every connected account — so you see which campaigns and channels deliver healthy unit economics on the platform side, even before you stitch in billing data.
| This calculator | With Pace | |
|---|---|---|
| Frequency | One snapshot | Recomputed daily |
| Granularity | Blended only | Per account / campaign / ad group |
| Action | Tells you the number | AI Sparks fires on CPA spikes >30% |
| History | Resets on refresh | Full change-tracking audit trail |