Flagship Toolkit

Startup Unit Economics Toolkit

Build, stress-test, and communicate your core economics in one workflow.

Who this toolkit is for

Start with break-even and margin math, then model churn, runway, and growth scenarios before planning targets.

Recommended workflow

Start with break-even math so fixed costs, variable costs, and contribution margin are explicit.
Use profit margin and churn tools to separate gross economics from retention risk.
Run runway and growth scenarios before setting targets for hiring, pricing, or fundraising.
Keep a conservative case beside the plan you intend to present.

Example scenario

A founder preparing an investor update can calculate break-even revenue, check margin assumptions, model churn impact, and then translate the plan into runway and growth-rate scenarios.

Which calculator should I use?

Tool	What it helps with	When to use it
Break-Even Calculator	Calculate break-even units and revenue with fixed and variable cost inputs.	Use when you need the sales volume or revenue required to cover fixed and variable costs.
Profit Margin Calculator	Compute profit, margin, and markup from revenue and cost.	Use when pricing, cost of goods, or service delivery margin needs a quick sanity check.
Churn Impact Simulator	Project customer count and MRR under churn and acquisition assumptions.	Use when retention assumptions could change growth, revenue, or payback.
Cash Runway Calculator	Estimate startup runway and projected cash balance over time.	Use before hiring, fundraising, or cost-cutting decisions.
CAGR Calculator	Calculate compound annual growth rate between two values over time.	Use when summarizing growth between two points in a comparable annualized format.

Common mistakes

Treating one optimistic growth case as the operating plan.
Mixing gross margin, contribution margin, and net margin without labeling them.
Ignoring churn or payback period when customer acquisition looks strong.
Updating runway without also updating burn, hiring, collections, and payment timing.

Finance & Business

Break-Even Calculator

Calculate break-even units and revenue with fixed and variable cost inputs.

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Finance & Business

Profit Margin Calculator

Compute profit, margin, and markup from revenue and cost.

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Finance & Business

Churn Impact Simulator

Project customer count and MRR under churn and acquisition assumptions.

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Finance & Business

Cash Runway Calculator

Estimate startup runway and projected cash balance over time.

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Finance & Business

CAGR Calculator

Calculate compound annual growth rate between two values over time.

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FAQ

What should I calculate first for startup unit economics?

Start with break-even and margin because they define whether each sale contributes enough to cover fixed costs.

Should these tools replace a financial model?

No. They are fast checks for core assumptions and scenario discussion; a full model should still handle timing, taxes, financing, and accounting detail.

Why include churn in unit economics?

Churn changes lifetime value, payback, growth, and runway, so acquisition metrics alone can make a business look healthier than it is.

Related categories

Data & Statistics Finance & Business Back to all tools