About the MRR Calculator
Monthly recurring revenue (MRR) with new, expansion, contraction and churned MRR — and net new MRR.
Also known as: monthly recurring revenue, mrr growth, net new mrr.
How to use this calculator
- Enter starting mrr, new mrr, expansion mrr, contraction mrr and the other fields.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
Net new MRR = new + expansion − contraction − churn
Worked example
Using the values pre-filled in the calculator above:
- Starting MRR = 50,000
- New MRR = 6,000
- Expansion MRR = 2,500
- Contraction MRR = 800
- Churned MRR = 1,700
the calculator returns:
- Ending MRR: 56,000
- Net new MRR: 6,000
- MRR growth: 12%
- ARR run-rate: 672,000