No learning curve. Just your numbers.
GrowthCalc does one thing well: it answers the question fast, and tells you what the answer means.
Pick a calculator
27 tools across paid ads, funnel and revenue, grouped so the one you need is a click away.
Type your numbers
Enter the figures you already have. The result recalculates the instant you type, with no run button and no waiting.
Know what to do
Every answer ships with its formula and a plain-English read on whether the number is healthy or worth a look.
Every metric that drives a decision
Return on ad spend
ROAS = Revenue ÷ Ad spend · Break-even = 1 ÷ Gross marginCustomer acquisition cost
CAC = Spend ÷ New customers · judged vs LTV (aim CAC ≤ LTV ÷ 3)ROAS needed to hit a profit goal
Target ROAS = 1 ÷ (Gross margin − Target margin)Cost per acquisition
CPA = Ad spend ÷ ConversionsCost per 1,000 impressions
CPM = Cost ÷ Impressions × 1,000Cost per click
CPC = Cost ÷ ClicksClick-through rate
CTR = Clicks ÷ Impressions × 100Minimum profitable ROAS
Break-even ROAS = 1 ÷ Gross marginSpend needed for a revenue target
Budget = Revenue target ÷ Target ROASImpressions ÷ reach (ad fatigue)
Frequency = Impressions ÷ ReachConversions ÷ visitors
Conversion rate = Conversions ÷ VisitorsTraffic × CVR × AOV
Revenue = Visitors × Conversion rate × AOVClosed deals ÷ leads
Lead-to-close = Closed ÷ Leads × 100Where you lose people, stage by stage
Step conversion = Stage ÷ Previous stageIs your result statistically valid?
Two-proportion z-test → two-tailed p-valueNet growth rate of your list
Growth rate = (New − Unsubscribes) ÷ Total × 100Conversions ÷ emails delivered
Email conversion = Conversions ÷ Delivered × 100Customer lifetime value
LTV = AOV × Orders/yr × LifespanThe key growth-health metric
LTV:CAC = LTV ÷ CACMonths to recover CAC
Payback = CAC ÷ (Monthly revenue × Gross margin)Average order value
AOV = Revenue ÷ OrdersProfit left after cost of goods
Gross margin = (Revenue − COGS) ÷ Revenue × 100Units & revenue to cover costs
Break-even units = Fixed costs ÷ (Price − Variable cost)Recurring revenue for SaaS
MRR = Customers × ARPU · ARR = MRR × 12Revenue ÷ visitors
RPV = Revenue ÷ VisitorsCustomers lost over a period
Churn = Customers lost ÷ Customers at start × 100Customers you kept over a period
Retention = (End − New) ÷ Start × 100A tool, not a brochure.
The marketers who use GrowthCalc want one thing: the right number, fast, with enough context to act on it. That is the whole product.
Free, instant, unlimited
Every calculator runs the moment you type. Nothing is gated, throttled or saved behind a login.
Built for decisions
Each metric ships with its formula and a one-line read, so the number always arrives with its meaning.
No black boxes
Standard, transparent math: the same calculations a sharp analyst would run by hand, shown in full.
Questions, answered.
- Is GrowthCalc really free?
- Yes. Every calculator is free and works straight away, with no signup, no trial and no usage limits.
- Do I need an account?
- No. Type your numbers and get the answer. Nothing to install, nothing to sign up for.
- How accurate are the calculators?
- Each one uses the standard, widely-accepted formula for its metric. It is a fast, reliable way to sanity-check your numbers, not a replacement for your own analytics.
- Do my numbers stay private?
- Yes. Every calculation runs in your browser. The spend, revenue and other figures you type are never sent to our servers or stored anywhere.
Run the number in seconds, not a spreadsheet.
Free, instant, and no signup. Open the app and start typing.