Business & Marketing Calculators

The numbers behind ads, SaaS and startups. Measure campaigns (ROAS, CTR, CPC, CPM, conversion rate), understand customers (lifetime value, churn, NPS), track the business (MRR, burn rate, runway) and evaluate investments (NPV, IRR, payback). Every tool defines its metric precisely and includes the benchmarks that make the number meaningful.

ROAS CalculatorReturn on ad spend — and the break-even ROAS you need. CTR CalculatorClick-through rate from clicks and impressions. CPC CalculatorCost per click, and the max CPC you can afford. CPM CalculatorCost per 1,000 impressions — solve any of the three. Conversion Rate CalculatorYour CR — and the value of each extra point. Customer Lifetime Value CalculatorCLV from order value, frequency and lifespan — plus LTV:CAC. Churn Rate CalculatorChurn %, retention, and implied customer lifetime. MRR & ARR CalculatorMRR, ARR, and the 12-month compounding projection. Burn Rate & Runway CalculatorNet burn and months of runway from cash and costs. NPS CalculatorNet Promoter Score from your 0–10 survey counts. A/B Test Significance CalculatorIs your A/B result real? Z-test with p-value. Sample Size CalculatorHow many survey responses you actually need. Email Open Rate CalculatorOpen rate, click rate and CTOR from one campaign. Engagement Rate CalculatorER by followers and by reach — the influencer metric. Payback Period CalculatorHow long until an investment repays itself. NPV CalculatorNet present value of a cash flow series. IRR CalculatorThe annualized return your cash flows actually earn. Markup CalculatorCost → price via markup or margin — and why they differ.