Calculator collection
SaaS Growth Metrics Calculators
Connect CAC, LTV, churn, MRR, ARR, runway, payback, conversion rate, lead value, ROAS, and MER into clearer SaaS growth scenarios.
- Step-by-step workflow
- Links to existing calculators
- Use results as estimates
Suggested workflow
Step 1
Measure recurring revenue
Use subscription revenue, MRR, and ARR to define the revenue base before modeling growth.
When to use
Use these when monthly and annual recurring revenue need to reconcile.
Step 2
Connect acquisition and value
Compare CAC, LTV, lead value, conversion rate, and funnel conversion before increasing spend.
When to use
Use these when paid acquisition or sales hiring depends on payback.
Step 3
Check retention pressure
Churn changes LTV, MRR growth, and runway, so model it before reading growth as healthy.
When to use
Use these when new revenue is growing but retention or payback is uncertain.
Step 4
Compare marketing efficiency
Use ROAS, MER, A/B tests, and email metrics to compare channel performance with business economics.
When to use
Use these before reallocating budget between channels.
Practical takeaway
SaaS growth is healthier when MRR, churn, CAC, LTV, payback, runway, ROAS, and MER point in the same direction.
Comparison note
CAC and LTV show customer economics, payback shows timing, and MER/ROAS show marketing efficiency from different angles.
Calculators in this collection
CAC
Calculate customer acquisition cost from sales, marketing, and new customers.
BusinessLTV
Estimate customer lifetime value from revenue, gross margin, and churn.
BusinessChurn Rate
Calculate customer churn rate, retention rate, and ending customers.
BusinessSubscription Revenue
Estimate MRR, ARR, churn impact, and next-month subscription revenue.
BusinessMRR
Calculate net new MRR and ending MRR from SaaS revenue movements.
BusinessARR
Convert MRR to ARR, ARR to MRR, and calculate annual recurring revenue movement.
BusinessPayback Period
Estimate how many months it takes to recover an initial investment.
BusinessBurn Rate
Calculate startup gross burn, net burn, and cash runway in months.
BusinessCash Runway
Estimate runway from cash, monthly burn, expected revenue, and expense growth.
BusinessConversion Rate
Calculate conversion rate, revenue per visitor, and conversions needed.
MarketingFunnel Conversion
Calculate step conversion rates, total funnel conversion, largest drop-off, and visitors needed for a target.
MarketingA/B Test
Compare A/B conversion rates, lift, and a simple significance indicator.
MarketingLead Value
Estimate expected lead value from close rate, customer value, gross margin, and cost per lead.
MarketingROAS
Calculate return on ad spend from revenue and advertising cost.
MarketingMER
Calculate marketing efficiency ratio from total revenue and total marketing spend.
MarketingEmail Marketing
Calculate open rate, CTR, click-to-open rate, conversion rate, and revenue per email.
MarketingRelated categories
Collection FAQ
Why connect CAC and LTV?+
CAC shows acquisition cost, while LTV, lead value, payback, and MER add value, timing, and marketing efficiency context.
Is churn a marketing metric?+
Churn is a retention metric, but it directly affects LTV, MRR growth, payback, runway pressure, and how much acquisition spend a business can afford.