MRR / ARR Projection Calculator
Project compound MRR growth net of monthly churn.
Growth assumptions
live
$
Projection
Projected MRR at month
Projected ARR
Net growth /mo
%
Total growth multiple
x
MRR trajectory
Trajectory health
How to use this calculator
- Enter current MRR — your starting baseline.
- Enter monthly new MRR growth as a percent of opening MRR.
- Enter monthly revenue churn percent (gross dollars lost / opening MRR).
- Pick a horizon. Use 12 months for operations, 36 months for fundraising.
Calculation method
Net Growth % = Growth% - Churn%
MRR(n) = Current x (1 + Net/100)^n
ARR = MRR x 12
Assumes constant growth and churn rates. Real businesses see decay; treat 36-month projections as upper bounds.
Frequently Asked Questions
MRR (Monthly Recurring Revenue) is the normalized monthly subscription revenue. ARR (Annual Recurring Revenue) is simply MRR x 12. Use MRR for operational tracking and weekly stand-ups; use ARR for investor reporting and valuation.
Net growth = New MRR added - MRR churned. A 10% new MRR with 4% revenue churn nets 6% real growth. Reporting only new MRR (gross) overstates trajectory and hides retention problems.
Compounding accurately models steady-state SaaS behaviour over 6-18 months. Beyond 18 months projections become directional only because growth rates almost always decay with scale. Re-forecast quarterly.
For seed-stage SaaS, 8-15% monthly net growth is venture-scale. For Series B+ (>$10M ARR) anything above 5% monthly is excellent. Public SaaS at >$100M ARR typically grows 30-50% annually (~2-3.5% monthly).
Project 12 months for operational planning, 24-36 months for fundraising narratives. Past 36 months the model error from changing churn, ACV, and growth rate exceeds the signal — present those years as scenarios, not forecasts.
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Business & SaaS Disclaimer
Projections are scenario models, not guarantees. Growth and churn rarely stay constant. SaaSCalcHub is not business or financial advice. Consult business advisors, CPAs, and consultants for your specific situation.
Last updated: May 26, 2026