Average Revenue Per User (ARPU) Calculator

A transparent, offline tool for founders, product managers, finance, and growth teams to compute and analyze customer revenue contribution. All calculations run locally in your browser.

Estimates only. Verify with your own data.

ARPU Calculator

Total Revenue *

USD

Enter total revenue for the period. Accepts commas and dots.

Total Users *

users

Number of paying users/customers for same period.

Revenue Period

Decimal Places

Scenario Sensitivity

Conservative (-10% revenue) Base (actual inputs) Aggressive (+15% revenue)

ARPU Results

Average Revenue Per User $20.00

Period: Annual

Scenario: Base

Assumptions Used

Revenue includes all customer payments for the period.
User count is active paying users at period end.
No pro‑rating for mid‑period changes.

What‑If: Required Users for Target ARPU

Target ARPU ($)

$5 $25 $100

Required Users at Current Revenue

2,000

-500 vs current

Understanding ARPU

Why ARPU Matters

ARPU measures revenue generated per customer, indicating pricing power, customer quality, and growth efficiency. It informs pricing changes, tier optimization, and customer segmentation.

Input Definitions

Input	What It Represents	Where to Find
Total Revenue	All customer payments for the period	Billing system, P&L statement
Total Users	Active paying customers at period end	CRM, subscription dashboard
Period	Time frame for revenue measurement	Reporting settings

Common Mistakes

Mixing monthly and annual revenue without adjusting period.
Including non‑recurring revenue (one‑time fees) inconsistently.
Using total sign‑ups instead of paying users.
Comparing ARPU across different billing cycles without normalization.

FAQ

How accurate is this calculator?

It provides a basic estimate using your inputs. Real‑world ARPU may vary due to proration, discounts, mid‑period changes, and customer churn.

Should I use gross or net revenue?

Use gross revenue from customers before deducting payment processing fees or refunds for comparability. Be consistent across periods.

When should I involve finance?

When making pricing decisions, forecasting, or reporting to stakeholders. Finance can validate data sources and adjust for accruals.

Formulas & Assumptions

Formula: ARPU = Total Revenue ÷ Total Users

Rounding: To selected decimal places.

Scenario adjustments: Conservative (–10% revenue), Aggressive (+15% revenue).

Period normalization: No automatic conversion; user selects period.

Disclaimer: For informational and educational purposes only. Estimates depend on your inputs and simplifying assumptions. This tool does not replace professional financial, accounting, or operational advice.

References

Basic business math for margins, pricing, and break‑even; General SaaS metrics definitions (MRR, churn, LTV, CAC).

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