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SaaS Metrics Calculator — Free, No Upload, Browser-Based

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Calculate your key SaaS health metrics — LTV, CAC, payback period, MRR growth rate, monthly and annual churn rate, and Net Revenue Retention — all in one place. Every calculation runs entirely in your browser: no data is sent to a server, no account required. Enter your numbers and see live results instantly.

Como usar esta ferramenta

Enter your ARPU, gross margin, and CAC in the Core Inputs section.
Fill in any additional sections — customer churn counts, MRR start/end values, or NRR components — to unlock more metrics.
Review the live results for each metric, including benchmark badges, and copy individual values to your clipboard.

Core Inputs

ARPU ($/month)*

Average Revenue Per User per month

CAC ($)

Customer Acquisition Cost

Gross Margin (%)

70%

Used for LTV and CAC payback (default 70%)

Customer Churn

Customers at Start of Period*

Customers Churned

Lost during the period

MRR Growth Rate

MRR — Start of Period ($)

MRR — End of Period ($)

Net Revenue Retention (NRR)

MRR (BoP) ($)

Beginning of period

Expansion MRR ($)

Upgrades

Churned MRR ($)

Cancellations

Contraction MRR ($)

Downgrades

Fill in any section above to see live results.

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