Calculate your Customer Acquisition Cost (CAC), Customer Lifetime Value (LTV), LTV:CAC ratio, and payback period — the four metrics every Indian startup and D2C brand needs to track growth efficiency.
CAC and LTV Explained
CAC measures how much you spend to acquire one customer. LTV measures how much revenue that customer generates over their lifetime. The ratio tells you if your growth is sustainable.
CAC = Total Sales & Marketing Spend / New Customers Acquired
LTV = Average Order Value × Purchase Frequency × Customer Lifespan
(or) Monthly Revenue per Customer / Monthly Churn Rate
LTV:CAC Ratio = LTV / CAC
Payback Period (months) = CAC / (Monthly Revenue per Customer × Gross Margin %)
LTV:CAC Benchmarks — India 2026
LTV:CAC Ratio
Health
What It Means
Below 1:1
Critical
Losing money on every customer — unsustainable
1:1 – 2:1
Poor
Barely covering acquisition; no room for ops costs
2:1 – 3:1
Marginal
Workable but needs improvement
3:1 – 5:1
Healthy
SaaS/D2C benchmark — sustainable and scalable
5:1+
Excellent
Strong unit economics — potential to grow faster
CAC & LTV FAQs
Include ALL costs to acquire customers: (1) Ad spend — Google Ads, Meta, influencer fees, (2) Sales team salaries (only the time spent on new customer acquisition, not account management), (3) Marketing tools — CRM, email platforms, analytics, (4) Agency/freelancer fees, (5) Referral bonuses, affiliate commissions. Divide total by new customers only — never count renewals or existing customers in the denominator.
Five proven levers for Indian D2C: (1) Increase repeat purchase rate — loyalty programs, subscription offers, push notifications via WhatsApp (40–60% open rates in India vs 20% email). (2) Increase average order value — bundling, upsells at checkout. (3) Reduce churn — proactive engagement 7 days before expected re-order. (4) Cross-sell complementary products. (5) Improve product quality to reduce returns and negative word-of-mouth.
For SaaS: Under 12 months is good, under 6 months is excellent. For D2C/E-commerce: Under 6 months is good (since products don't have monthly recurring revenue). For marketplaces: Under 18 months is acceptable. Longer payback periods require more working capital and make the business vulnerable to CAC inflation (e.g., rising Meta/Google ad costs in India).
ARPU (Average Revenue Per User) is a point-in-time monthly/annual metric. LTV is the total cumulative revenue over the entire customer relationship. LTV = ARPU × Average Customer Lifespan. If your ARPU is ₹500/month and average customer stays for 18 months, LTV = ₹9,000. LTV must always be net of COGS — use gross profit, not revenue, to avoid inflating the metric.