CAC & LTV calculator
Enter spend, new customers, revenue, margin and churn to get CAC, gross-margin LTV, LTV:CAC ratio and CAC payback. Free, USD or INR, no signup.
LTV uses gross margin (the SaaS-standard definition): revenue per customer × margin × average lifespan, where lifespan = 1 ÷ monthly churn.
- CAC (cost to acquire)$500
- LTV (lifetime value)$2,400
- CAC payback5.2 months
- Avg customer lifespan25.0 months
The fastest way to fix a weak ratio is a cheaper acquisition channel. Autocloz runs email, calling, LinkedIn, SMS and WhatsApp on a free-forever CRM with unlimited users — so outbound cost isn't a per-seat tax.
Lower your CAC — start freeCAC & LTV FAQ
How do you calculate CAC?+
Customer acquisition cost (CAC) = total sales and marketing spend in a period ÷ new customers acquired in that period. This calculator uses a monthly window.
How is LTV calculated?+
This uses the gross-margin definition: LTV = revenue per customer per month × gross margin % × average customer lifespan, where lifespan (months) = 1 ÷ monthly churn rate. Gross-margin LTV is the SaaS-standard because it reflects real profit, not just revenue.
What is a good LTV:CAC ratio?+
3:1 or higher is generally considered healthy — you earn at least three times what it costs to acquire a customer. Below 1:1 you lose money on each customer; 1–3 is a caution zone.
What is CAC payback?+
The number of months of gross-margin revenue from a customer needed to recover their acquisition cost. Under ~12 months is strong for most SMB/mid-market SaaS.
Bring your CAC down.
Run every outbound channel and a free-forever CRM in one login — unlimited users, so acquisition isn't a per-seat tax.