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Business calculations for better decisions.

Calculate financing costs, profitability, customer economics, return on investment, and other core business metrics with practical tools built for business owners.

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THE STACK MATRIX

Plan. Connect. Grow.

Not sure where to start?

Find the right tool for your situation.

Finance

Need financing or cash-flow planning?

Compare loan options, model debt capacity, and forecast cash flow.

Pricing

Working on pricing or margins?

Analyze markup, margins, contribution, and target profit.

Sales & Revenue

Planning a revenue target?

Work through pipeline, lead generation, team capacity, and timing.

Marketing

Planning a marketing experiment?

Plan channel experiments, lead budgets, and content calendars.

Business OS / Plan → measure → decide

Keep the plan. Learn from the result.

Go beyond a one-off calculation with the four business kits, saved scenarios, monthly results, decisions, and reviews in one protected planning workspace.

Explore Business OS →
  1. 01 / Plan one decisionChoose a cash-flow, pricing, sales, or marketing question and save your assumptions.
  2. 02 / Record what happenedCompare customer-entered monthly results with your optional targets and forecasts.
  3. 03 / Choose what comes nextKeep decision notes, review lessons, and dated follow-ups. Estimates are not guarantees.

Free Tools

Start with a calculation

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Business Loan Calculator

Estimate business loan payments, total interest, and repayment cost.

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Loan Payment Calculator

Calculate monthly payments based on loan amount, rate, and term.

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Break-Even Calculator

Calculate the sales volume or revenue needed to break even.

Open Calculator →

ROI Calculator

Calculate return on investment, net return, and return multiple.

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Profit Margin Calculator

Calculate gross profit, operating profit, and business margins.

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Customer Acquisition Cost Calculator

Calculate CAC from marketing spend, sales spend, and new customers.

Open Calculator →

Business Metrics

Understand the numbers behind your business.

Explore customer acquisition cost, customer lifetime value, ROI, and profit margin calculators in one place.

Explore Business Metrics →

Business Finance Tools Kit

Go beyond individual calculations.

Compare financing options, model debt capacity, analyze break-even scenarios, forecast cash flow, and test business assumptions with the Business Finance Tools Kit.

Explore Finance Tools Kit

Pricing & Unit Economics Kit

Turn margin calculations into pricing scenarios.

Compare pricing options, test markup and margin changes, plan for target profit, and analyze contribution margin with dedicated pricing tools.

Explore Pricing & Unit Economics Kit

Sales & Revenue Kit

Turn a revenue goal into an actionable sales plan.

Work through sales target, pipeline, lead generation, team capacity, sales-cycle timing, and customer economics with a connected set of sales planning tools.

Explore Sales & Revenue Kit

Marketing & Customer Growth Kit

Plan and measure marketing growth experiments.

Define a growth objective, compare channel experiments, plan lead budgets, review customer economics, and organize a content calendar with save, restore, and export support.

Explore Marketing & Customer Growth Kit
The Stack Matrix calculators provide estimates for planning and educational purposes. Actual business results may vary based on your assumptions and operating conditions.