Lifetime Value Calculator

How to Use This Tool

Start by entering your business’s core customer metrics: average order value, how many times a customer buys from you per year, and how many years they remain a customer. You can optionally add your customer acquisition cost to calculate LTV:CAC ratio and payback periods. Select your preferred currency for result display, then click Calculate LTV. Use the Reset button to clear all fields and start over. Copy results to your clipboard with one click to share with your team or add to reports.

All fields marked as required must be filled with positive numbers to generate valid results. The CAC field is optional, but including it unlocks additional insights about your acquisition efficiency.

Formula and Logic

This calculator uses standard e-commerce and trade industry formulas for lifetime value calculations:

• Annual Customer Value = Average Order Value (AOV) × Annual Purchase Frequency
• Total Lifetime Value (LTV) = Annual Customer Value × Average Customer Lifespan
• LTV:CAC Ratio = Total LTV ÷ Customer Acquisition Cost (if CAC is provided)
• CAC Payback Period = Customer Acquisition Cost ÷ Annual Customer Value (if both values are provided)

These formulas are widely accepted for SaaS, e-commerce, and B2B trade businesses to evaluate customer retention and acquisition strategies.

Practical Notes

For e-commerce and trade businesses, a healthy LTV:CAC ratio is typically 3:1 or higher. Ratios below 1:1 mean you are losing money on every customer acquired. B2B businesses may target higher ratios (5:1 or more) due to longer sales cycles and higher acquisition costs.

Average customer lifespan can be calculated by dividing 1 by your annual churn rate. For example, a 20% annual churn rate equals a 5-year average lifespan. Use this method if you track churn instead of direct lifespan data.

When setting pricing tiers or promotional offers, ensure your LTV covers all variable costs and contributes to fixed cost coverage. Many small businesses use a 30% gross margin threshold to ensure LTV remains profitable after cost of goods sold and operational expenses.

• Benchmark LTV for e-commerce ranges from $100 to $500 for low-AOV retailers, and $1,000+ for premium or subscription brands.
• Trade wholesalers often calculate LTV per client rather than per order, factoring in bulk order discounts and repeat purchase agreements.

Why This Tool Is Useful

Lifetime value is a core metric for allocating marketing budgets, setting customer retention goals, and evaluating business viability. Without LTV data, businesses often overspend on acquisition or underinvest in retention, leading to unsustainable growth.

This tool helps small business owners and sales teams make data-backed decisions about discounting, loyalty programs, and ad spend. It also provides clear benchmarks to share with investors or stakeholders when reporting on customer growth metrics.

Unlike basic LTV calculators, this tool includes LTV:CAC ratio and payback period calculations, giving a full picture of acquisition efficiency alongside total customer value.

Frequently Asked Questions

What is a good LTV:CAC ratio for small businesses?

A 3:1 ratio is considered healthy for most small e-commerce and trade businesses. Ratios between 1:1 and 3:1 mean you are profitable but may be overspending on acquisition. Ratios above 5:1 suggest you may be underinvesting in growth, as you could acquire more customers profitably.

How do I calculate average customer lifespan if I don’t track it directly?

Divide 1 by your annual customer churn rate. For example, if 15% of your customers stop buying each year, your average lifespan is ~6.67 years. Use this method if you have churn data but not direct lifespan tracking.

Should I include refunds or returns in AOV calculations?

Yes, use net AOV (total revenue minus refunds, divided by total orders) for the most accurate LTV. Gross AOV will overstate your actual customer value and lead to inflated LTV numbers.

Additional Guidance

Update your LTV calculations quarterly to account for changes in pricing, churn, or acquisition costs. Seasonal businesses should use rolling 12-month averages for purchase frequency and AOV to avoid skewed results from holiday sales spikes.

For B2B trade businesses, consider separating LTV calculations by client tier (small, medium, enterprise) to identify your most valuable customer segments. This helps prioritize high-value account retention and tailor acquisition campaigns to similar prospects.

If your LTV:CAC ratio is below 3:1, focus on retention strategies like loyalty programs, personalized email campaigns, or post-purchase support before increasing ad spend. Improving customer lifespan by 6 months can often have a larger impact on LTV than increasing AOV by 10%.