Finance

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.

このツールの使い方

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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