MRR to ARR Conversion Guide for B2B SaaS

Published August 24, 2026 · 5 min read

Annual Recurring Revenue (ARR) is the core top-line financial metric for evaluating mid-market and enterprise B2B software companies. ARR normalizes recurring subscription revenues into a single annual valuation metric.

While SMB startups focus on MRR, institutional investors and venture capital firms evaluate enterprise SaaS businesses based on ARR run rate multiples.

The MRR to ARR Conversion Formula

For standard monthly subscriptions, ARR is calculated by multiplying active MRR by 12:

For example, if your current monthly recurring revenue is $25,000.00: $25,000 x 12 = $300,000.00 ARR.

Normalizing Multi-Year Contracts (TCV to ARR)

Enterprise software contracts often cover 24 to 36 month terms. To calculate ARR from Total Contract Value (TCV):

For a 3-year contract worth $120,000.00 (36 months): ($120,000 / 36) x 12 = $40,000.00 ARR.

Run your ARR conversions instantly using our interactive ARR Calculator.