Expansion Revenue Calculator
Estimate the expansion MRR and ARR a year of seat growth and plan upgrades would add from the accounts you already have.
- Free
- No sign-up to try
- Works as you type
Expansion revenue
Expansion MRR from extra seats
$18,000
Expansion MRR from upgrades
$3,000
Expansion ARR
$252,000
Expansion as a share of current MRR
23.3%
- Seat expansion = accounts × seats × seat growth × price per seat.
- Upgrade expansion = accounts × share that upgrade × extra MRR per upgrade.
- Expansion ARR = (seat + upgrade expansion) × 12.
- Share = expansion MRR ÷ current MRR (accounts × seats × price) × 100.
Free, no sign-up to try. Save it as a live calculator you can share; an estimate from the numbers you enter, not financial advice. Check the result against your own records before you rely on it.
How it works
How the Expansion Revenue Calculator works
- 1
Enter your numbers
Every result updates as you type, with the formula shown under it.
- 2
Check the method
See how each number is worked out and what it assumes.
- 3
Save it as a Room
Share a live calculator: others can change the numbers and see the result update.
Worked example
What it makes
Example inputs
- Existing accounts
- 200
- Average seats per account
- 15
- Price per seat per month
- $30
- Seat growth over the year
- 20 %
- Accounts that upgrade plan
- 10 %
- Extra MRR per upgrade
- $150
Results
- Expansion MRR from extra seats
- $18,000
- Expansion MRR from upgrades
- $3,000
- Expansion ARR
- $252,000
- Expansion as a share of current MRR
- 23.3%
How it's calculated
- Seat expansion = accounts × seats × seat growth × price per seat.
- Upgrade expansion = accounts × share that upgrade × extra MRR per upgrade.
- Expansion ARR = (seat + upgrade expansion) × 12.
- Share = expansion MRR ÷ current MRR (accounts × seats × price) × 100.
- Assumes: Figures are the MRR added by the end of the year, before any churn or downgrades.
- Assumes: Seat growth and upgrades are averages across all accounts.
An estimate from the numbers you enter, not financial advice. Check the result against your own records before you rely on it.
Who it's for
Who uses it
Customer success
Set an expansion target the team can plan against.
SaaS founders
See how much growth can come from existing customers.
Finance
Add an expansion line to the revenue plan with the method shown.
Good to know
What to consider
- Expansion is shown before churn and downgrades; use the NRR calculator for the net figure.
- Seat growth and upgrade rates are averages: a few large accounts can dominate.
Questions
About the Expansion Revenue Calculator
What counts as expansion revenue?
Extra recurring revenue from existing customers: more seats, higher plans, add-ons and usage above their old level. It doesn't include new customers.
Can I share the calculator with my team or a client?
Yes. The Room keeps the calculator live: anyone with the link can change the numbers and see the result update, with the method and assumptions on the same page.
Make your calculator now
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Related tools
- Net Revenue Retention CalculatorWork out net and gross revenue retention for your existing customers from their starting MRR, expansion, downgrades and cancellations.
- SaaS Pricing Tier CalculatorEnter the price and customer count for three plans to see your MRR, ARR, average revenue per account and how much depends on the top plan.
- ARR CalculatorRoll this month's MRR movements (new, expansion, contraction and churn) into ending MRR, annual recurring revenue and net new ARR.