SaaS Calculators
Free SaaS metrics calculators for founders, operators, and growth teams. Track monthly recurring revenue, model churn impact, calculate customer acquisition cost, and understand your LTV:CAC ratio — the core metrics that drive SaaS fundraising, pricing, and growth strategy.
SaaS MRR Calculator
Calculate monthly recurring revenue by plan, customers, and expansion.
saasSaaS ARR Calculator
Calculate annual recurring revenue and growth scenarios.
saasChurn Rate Calculator
Calculate customer churn, revenue churn, and retention signals.
saasCustomer Lifetime Value Calculator
Estimate LTV from ARPU, gross margin, and churn.
saasSaaS CAC Calculator
Calculate SaaS customer acquisition cost and payback.
saasLTV to CAC Ratio Calculator
Calculate LTV:CAC ratio and SaaS acquisition quality.
saasSaaS Burn Rate Calculator
Calculate net burn rate and monthly cash consumption.
saasSaaS Runway Calculator
Calculate months of runway from cash balance and burn rate.
saasExpansion Revenue Calculator
Estimate expansion MRR from upgrades, add-ons, and account growth.
saasNet Revenue Retention Calculator
Calculate NRR from starting revenue, expansion, contraction, and churn.
Common use cases
MRR and ARR tracking
Calculate your Monthly and Annual Recurring Revenue as a baseline for growth planning and investor reporting.
Churn impact modelling
Model how different churn rates affect MRR and customer count over 12 months to prioritise retention.
LTV:CAC ratio health check
Check whether your customer lifetime value is at least 3x your acquisition cost — the standard SaaS benchmark.
Runway planning
Calculate how many months of operating runway remain at your current burn rate to time fundraising correctly.
Expansion revenue tracking
Separate new MRR from expansion (upsell/cross-sell) MRR to understand whether existing customers are growing.
Net Revenue Retention
Calculate NRR to understand whether your existing customer base is growing, shrinking, or holding flat over time.
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Related categories
Frequently asked questions
What is a healthy churn rate for SaaS?
For B2B SaaS, monthly churn below 1–2% is generally considered healthy. Annual churn below 10–15% is often the benchmark. However, acceptable churn varies significantly by market segment and average contract value.
What does LTV:CAC ratio mean?
LTV (Customer Lifetime Value) divided by CAC (Customer Acquisition Cost). A ratio above 3:1 is typically considered healthy, meaning you earn at least $3 in lifetime value for every $1 spent to acquire a customer.
How is MRR different from ARR?
MRR is your monthly recurring revenue — predictable subscription income in one month. ARR is simply MRR × 12. ARR is often used for investor reporting and benchmarking annual scale.
Do these SaaS tools work for non-subscription businesses?
Some metrics like ROAS, ROI, and CAC apply broadly. Others like MRR, ARR, and NRR are specific to recurring revenue models.