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KnowYourNut. Know your nut. Run your business.

Calculators

Free tools that share a single business profile. Change one number and the rest update.

Break-Even Calculator

Find out exactly how many units you need to sell to cover all your costs.

Cash Flow Forecast

Project your cash position over the next 12 months and see your runway.

Markup & Margin Calculator

Convert between markup and margin instantly. Change one field and the rest update.

COGS Calculator

Calculate your cost of goods sold, gross profit, and gross margin. Compare your cost structure to industry benchmarks.

Salary vs Distribution (S-Corp)

See how much you could save in self-employment taxes with an S-Corp election.

Quarterly Tax Estimator

Calculate your quarterly tax payments to avoid underpayment penalties.

Employee True Cost

See the real cost of an employee beyond their base salary: taxes, benefits, and overhead.

Loan Payment / SBA Calculator

Calculate monthly payments for conventional and SBA loans with amortization schedules.

Should I Raise My Prices?

See how a price increase affects your profit and how many sales you can afford to lose.

Can I Afford to Hire?

Find out if you can afford your next hire: true cost, 12-month projection, and a clear verdict.

Inventory Turnover Calculator

See how fast your inventory sells, your days sales of inventory, and annual carrying costs.

DSCR Calculator

Find out if your business qualifies for an SBA loan and how much you can borrow.

Business Valuation Calculator

Estimate what your business is worth using SDE multiples, revenue multiples, asset-based, and DCF methods.

Flip/Rehab Calculator

Estimate your fix-and-flip profit, ROI, and max allowable offer using the 70% rule.

Land & Build Calculator

Analyze ground-up construction deals: land costs, build budget, comp-based ARV, and max land price for your target ROI.

Rental Property Analyzer

Analyze rental property cash flow, cap rate, cash-on-cash return, and 5-year projections.

BRRRR Calculator

Calculate your BRRRR deal: capital recovery, refinance analysis, and ongoing cash flow.

Deal Comparison Tool

Compare two investment properties side by side. See which deal wins on ROI, cash flow, and cap rate.

ROI Calculator

Calculate return on investment, annualized ROI, and payback period for any business expense.

Depreciation Calculator

Calculate asset depreciation using straight-line, Section 179, MACRS, and bonus depreciation methods.

Burn Rate & Runway Calculator

Calculate your monthly burn rate, cash runway, and zero-cash date with scenario modeling.

ROAS Calculator

Calculate return on ad spend, net profit from ads, break-even ROAS, and cost per acquisition.

Budget Calculator

Build a complete business budget with categorized expenses, surplus/deficit tracking, and budget-to-actual variance.

What's Your Quit Number?

Find out when you can safely quit your day job. Calculates the business income needed to replace your W-2 salary, benefits, and taxes.

Gov Contract Cost Calculator

Estimate the total cost of pursuing government contracts: compliance, bonding, bid prep, and ongoing overhead.

Rate Impact Calculator

See how a Fed rate change affects your monthly payment, annual costs, and total loan cost.

SDE Calculator

Calculate seller's discretionary earnings to see what your business is worth to a buyer.

Profit Margin Calculator

Calculate gross, operating, and net profit margins at a glance.

Marketing ROI Calculator

Measure whether your marketing spend is paying off with clear ROI numbers.

CAC Calculator

Calculate what it really costs to acquire each new customer across all channels.

CPA Calculator

Calculate your cost per acquisition by channel to optimize ad spend.

CPM Calculator

Calculate what you pay to get your ad in front of 1,000 people.

STR / Airbnb Calculator

Analyze short-term rental revenue, expenses, and ROI for vacation properties.