SaaS calculator

MRR Calculator

Calculate ending MRR from new, expansion, contraction and churned recurring revenue.

MRR movement matters

A single MRR number hides what changed. Breaking movement into new, expansion, contraction and churned MRR helps separate acquisition from retention and account expansion.

Example

Starting with $50,000 MRR, adding $8,000 new MRR and $3,000 expansion MRR, then subtracting $1,000 contraction and $4,000 churned MRR, gives ending MRR of $56,000.

Common mistakes

Do not include one-time setup fees in MRR. Annual contracts should be normalized to monthly recurring revenue if your reporting policy treats them as recurring.

Limitations

MRR definitions differ across SaaS companies. Document whether discounts, trials, usage revenue, annual contracts and one-time services are included.

Last reviewed: 2026-05-17

Before relying on this result

Use this calculator together with the formula, assumptions, limitations and examples on the page. If the topic involves health, tax, lending, investment, legal, safety or current-rate decisions, treat the number as an estimate and check the relevant primary source or professional guidance.

Calculator metadata last reviewed: 2026-05-14.