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Free Micro SaaS Profit Calculator

Estimate your micro SaaS net income based on monthly recurring revenue (MRR), churn rate, operating costs, and founder salary. See if your SaaS idea is financially sustainable.

SaaS Profit Calculator

Revenue & Profit Summary
Monthly Recurring Revenue (MRR)$0
Annual Recurring Revenue (ARR)$0
Monthly Churned Revenue$0
Net MRR (after churn)$0
Monthly Operating Profit$0
Annual Operating Profit$0
Net Income After Salary$0
Monthly Customers Lost0

How to Use

This micro SaaS profit calculator helps you model the financial health of your SaaS business. Start by entering your monthly paying users and average monthly price to calculate your MRR. Then add your churn rate to see how much revenue you lose each month.

Include your monthly operating costs (hosting, SaaS tools, payment processing, etc.) and your annual salary draw to determine whether your business is sustainable. The calculator shows both your operating profit and your net income after paying yourself.

If the net income is negative, it means your business is not covering your salary — a sign that you need to grow revenue, reduce churn, or cut costs.

Key SaaS Metrics Explained

  • MRR (Monthly Recurring Revenue): Your predictable monthly revenue from paying users. Calculated as users × average price.
  • ARR (Annual Recurring Revenue): Your MRR multiplied by 12. A key metric investors look at to gauge business size.
  • Churned Revenue: The revenue you lose each month due to cancellations. Keeping this low is critical for growth.
  • Net MRR: What remains after churn. This is your true monthly revenue before expenses.
  • Operating Profit: Net MRR minus operating costs. This shows whether your core business covers its expenses.

SaaS Profit Formulas

MRR = Users × Price
ARR = MRR × 12
Churned Revenue = MRR × (Churn Rate / 100)
Net MRR = MRR − Churned Revenue
Operating Profit = Net MRR − Operating Costs
Annual Operating Profit = Operating Profit × 12
Net Income = Annual Operating Profit − Salary Draw
Customers Lost = Users × (Churn Rate / 100)

Frequently Asked Questions

A good MRR depends on your goals. For a solo founder, $3,000-$10,000 MRR can provide a decent side income, while $10,000-$50,000 MRR is considered a sustainable full-time micro SaaS. Many bootstrapped SaaS companies reach profitability between $1,000 and $3,000 MRR.
For most SaaS businesses, a monthly churn rate below 5% is acceptable, and below 3% is good. Top-performing SaaS companies achieve under 2% monthly churn. For micro SaaS products with lower price points, 5-7% monthly churn is common, while higher-priced products tend to have lower churn rates.
Micro SaaS founder earnings vary widely. A profitable micro SaaS with 200-500 users at $29/month can generate $5,800-$14,500 MRR. After operating costs and taxes, many solo founders take home $40,000-$120,000 per year. The key is keeping operating costs low and focusing on a niche audience.
Typical monthly operating costs for a micro SaaS include hosting ($20-$200), third-party APIs ($50-$500), domain and email ($10-$50), analytics and monitoring ($20-$100), and payment processing fees (2.9% + $0.30 per transaction). Total monthly costs typically range from $100 to $2,000.