B2B & Startup Economics

Business & SaaS Calculators

Grow with precision. Calculate your startup's runway, optimize your LTV:CAC ratio, and model your profitability with clinical-grade business tools.

SaaS & Subscription Economics Profitability & Pricing Startup & Fundraising Marketing & E-Commerce Operations & Hiring

SaaS & Subscription Economics

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LTV Calculator

Customer Lifetime Value based on churn and ARPU.

CAC Calculator

Customer Acquisition Cost (Sales & Marketing spend).

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LTV To CAC Ratio

The ultimate indicator of startup sustainability.

Churn Rate Calculator

Customer and revenue attrition rates.

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Net Revenue Retention (NRR)

Measure expansion revenue against churn.

CAC Payback Period

Months required to recover acquisition costs.

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SaaS Magic Number

Measure your sales and marketing efficiency.

Rule of 40 Predictor

Does your growth + profit margin exceed 40%?

MRR to ARR Converter

Monthly to Annual Recurring Revenue modeling.

Profitability & Pricing

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Profit Margin Calculator

Gross, operating, and net profit margins.

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Break-Even Point

Volume needed to cover fixed and variable costs.

Markup Calculator

Determine retail pricing based on cost of goods.

SaaS Pricing Tier Optimizer

Model Good/Better/Best pricing elasticity.

Agency Retainer Pricing

Calculate billable hour profitability.

EBITDA Calculator

Earnings before interest, taxes, depreciation.

Startup & Fundraising

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Runway Calculator

Months of cash remaining at current burn rate.

Burn Rate Estimator

Gross burn vs Net burn cash flow analysis.

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Founder Equity Dilution

See how Seed/Series A rounds affect your ownership.

Startup Valuation

Pre-money vs Post-money math based on investment.

ESOP Pool Sizing

Calculate Employee Stock Ownership Plan allocation.

Marketing & E-Commerce

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ROAS Calculator

Return on Ad Spend for Facebook/Google Ads.

AOV Conversion Rate Calculator

Average Order Value and funnel efficiency.

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Stripe Fee Calculator

Calculate exactly how much hits your bank account.

B2B Sales Funnel

Lead to Opportunity to Close-Won conversion math.

Customer Success ROI

Financial impact of reducing churn by 1%.

Operations & Hiring

Hiring Cost Calculator

Recruiting, onboarding, and training true costs.

Inventory Turnover

How many times you sell/replace inventory per year.

Reorder Point Formula

Exactly when to restock physical products.

Employee Productivity

Revenue per employee and utilization rates.

Working Capital Ratio

Assess current assets versus current liabilities.

B2B & Startup Rules of Thumb

The Rule of 40

A core SaaS valuation metric. A company's year-over-year revenue growth rate plus its EBITDA profit margin should equal or exceed 40%.

12-Month CAC Payback

Ideally, a startup should recover the cost of acquiring a customer (CAC) within 12 months. This ensures rapid cash flow recycling to fund further growth.

The 3:1 LTV Ratio

If your Lifetime Value (LTV) is less than 3x your CAC, you are spending too much to acquire customers. If it is over 5x, you are likely under-investing in marketing.

Financial & Investment Disclaimer

The startup metrics and calculations provided are for educational and financial modeling purposes only. Metrics like ESOP valuation and dilution are highly dependent on specific term sheets, liquidation preferences, and cap table structures. Always consult a corporate attorney or fractional CFO before issuing equity or executing funding rounds.

Frequently Asked Questions

What is a good LTV:CAC ratio for a SaaS company?

The industry gold standard for a healthy SaaS business is an LTV:CAC ratio of 3:1 or higher. This means that for every $1 you spend acquiring a customer (CAC), you receive at least $3 in Customer Lifetime Value (LTV). Anything below 1:1 means you are losing money on every new customer.

What is Net Revenue Retention (NRR) and why does it matter?

NRR measures the percentage of recurring revenue retained from existing customers over a given period, including expansions, downgrades, and churn. An NRR over 100% means your business can grow without acquiring any new customers. Top-tier public SaaS companies often have NRR rates above 120%.

How do you calculate startup runway?

Your runway is simply your current cash balance divided by your monthly net burn rate (total cash out minus total cash in). If you have $500,000 in the bank and you are burning $50,000 net per month, you have 10 months of runway before you run out of cash or need to raise funding.