Free tools

SaaS calculators,
on the house.

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Quick calculators for the SaaS metrics your board asks about. When you want these tracked automatically on your real data, try atSpark.

Revenue

MRR calculator

Calculate Monthly Recurring Revenue from your subscription mix. Handles monthly + annual plans, discounts, and seat counts.

Open calculator → Retention

Churn rate calculator

Customer churn and revenue churn for any time period. Compare gross vs net churn and see what a 1pt improvement is worth.

Open calculator → Unit economics

LTV calculator

Customer lifetime value from ARPU, gross margin, and churn. The single most predictive number for any subscription business.

Open calculator →
✦ Want these auto-tracked on your real data? Get started with atSpark →