Yes, you can calculate LTV without knowing your churn. But you shouldn't since it's not really reliable. But still better than nothing if you have an understanding of expected retention as a newly started business and still haven't got firm retention numbers.To do this, start by calculating the average revenue per user (ARPU) and multiply it by the expected customer lifespan. Then subtract the customer acquisition cost (CAC). The resulting number is your LTV, which represents the total value of a customer over their time with your business. This method does not require knowledge of churn rate but will give you an estimate of how much money you can expect to make from each customer.  While this number may be less accurate than one calculated with churn rate included, it is still a useful metric for understanding the financial health of your SaaS business.