Skip to content
Mathify

商业

即时、私密且免费

计算器: LTV/CAC.

使用计算器: LTV/CAC，根据输入获得清晰实用的结果。

此计算器尚未完全翻译——部分文本以英文显示。

设备端计算无需注册
01

输入数值

输入时结果会更新。

LTV: US$3,200.00

LTV

US$3,200.00
LTV/CAC Ratio: 4.00x

LTV/CAC Ratio

4.00x
CAC Payback: 8.3 months

CAC Payback

8.3 months

相关计算器

LTV to CAC Ratio CalculatorCalculates the ratio of Customer Lifetime Value (LTV) to Customer Acquisition Cost (CAC), a key metric for evaluating the profitability of customer acquisition.Customer Retention CalculatorCalculate period retention and churn from opening, acquired, and closing customers.Customer Lifetime Value CalculatorEstimates the total revenue a customer will generate over their entire relationship with your business, based on average purchase value, purchase frequency, and customer lifespan.Average Order Value CalculatorCalculates the average value of each order based on total revenue and number of orders.Startup Runway CalculatorCalculate how many months of cash your business has leftSubscription CalculatorCalculate potential savings from reducing subscription refunds

Cite this calculator

Canonical URL: https://mathify.one/zh/business/ltv-cac

Cite as: Mathify. (2026). 计算器: LTV/CAC. https://mathify.one/zh/business/ltv-cac

Use Cases

Evaluate SaaS unit economics

Assess the financial health of your SaaS business by calculating LTV, LTV:CAC ratio, and payback period to inform pricing, marketing spend, and retention strategies.

Example: A startup with $50 ARPU, 70% margin, 4% churn, and $300 CAC can see if their LTV:CAC is above 3.

Compare customer segments

Use the calculator to compare LTV and payback across different customer segments or pricing tiers to identify the most profitable acquisition channels.

Example: Compare enterprise vs. SMB segments by entering different ARPU and churn values.

Frequently Asked Questions

How is LTV calculated in this calculator?
LTV is calculated as (ARPU × gross margin) ÷ monthly churn rate. For example, with $100 ARPU, 80% margin, and 5% churn, LTV = ($100 × 0.80) ÷ 0.05 = $1,600.
What does the LTV:CAC ratio indicate?
The LTV:CAC ratio compares the lifetime value of a customer to the cost of acquiring them. A ratio above 3 is generally considered healthy for SaaS, meaning the customer's value is at least three times the acquisition cost.
How is the CAC payback period calculated?
The CAC payback period is calculated by dividing the customer acquisition cost (CAC) by the monthly gross margin contribution (ARPU × margin). It shows how many months it takes to recover the acquisition cost.

Tips & Common Mistakes

Tips

  • Ensure your churn rate is monthly and consistent with the period used for ARPU to get accurate LTV.
  • Use gross margin (not net) to reflect the true contribution margin available to cover acquisition costs.
  • Regularly recalculate as your churn and pricing change to keep your unit economics up to date.
  • Aim for an LTV:CAC ratio of at least 3:1, but also consider payback period to manage cash flow.

Common Mistakes to Avoid

  • Using annual churn instead of monthly churn, which can understate LTV significantly.
  • Forgetting to multiply ARPU by gross margin, leading to an overestimated LTV.
  • Ignoring the payback period and focusing only on LTV:CAC, which can mask cash flow issues.

Last updated: August 13, 2026