Free financial calculators built for small business owners

Estimate loan payments, margins, cash flow, valuation and more — instantly, in your browser. No signups, no logins, no spreadsheets.

Loans & Financing

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SBA Loan Calculator

SBA 7(a) vs 504 vs conventional, side by side.

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Business Loan Calculator

Monthly payment, total interest & full amortization.

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Amortization Calculator

Full payment-by-payment schedule with extra payments.

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APR Calculator

True annual cost of a loan including fees.

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Commercial Mortgage

CRE payment, LTV, DSCR & balloon due.

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Equipment Loan

Finance equipment with tax, trade-in & fees.

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Balloon Payment

What actually comes due at maturity.

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Loan Refinance

Current loan vs a new one, with break-even.

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Loan Affordability

How much you can borrow for a given payment.

Loan Payoff

See how extra payments shorten your loan.

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Line of Credit

Interest cost on a business LOC draw.

Alternative Financing

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Merchant Cash Advance

Holdback, payback period & the real APR.

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Invoice Factoring

Advance, fee & effective APR by payment terms.

Factor Rate

Decode the true cost of a cash advance.

Debt & Cash Flow

DSCR Calculator

Does your cash flow cover the debt?

Debt Payoff

Snowball vs avalanche, compared side by side.

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Debt-to-Income Ratio

Your DTI & how much room is left.

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Burn Rate & Runway

How many months of cash you have left.

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Debt Consolidation

Combine debts into one lower payment.

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Working Capital

Assets minus liabilities & current ratio.

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Cash Flow

Net cash flow and ending balance.

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Business Budget

Revenue, expenses & monthly profit.

Interest & Investment Analysis

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Compound Interest

Growth with regular contributions.

Simple Interest

Interest, daily accrual & total owed.

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Interest Rate Calculator

Solve the rate from your payment.

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NPV Calculator

Net present value of a project.

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IRR Calculator

Internal rate of return & MIRR.

Payback Period

Simple and discounted payback.

Pricing & Profit

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Profit Margin

Gross profit, margin & markup.

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Markup Calculator

Set a selling price from your cost.

Break-Even

Units & revenue to cover your costs.

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Sales Tax

Add or extract sales tax on any amount.

Growth & Planning

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ROI Calculator

Return on investment & annualized ROI.

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Cap Rate Calculator

NOI, cap rate, cash-on-cash & DSCR.

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Depreciation Calculator

Straight-line, declining balance, SYD & MACRS.

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Business Valuation

Estimate what your business is worth.

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Lease vs Buy

Compare leasing and buying equipment.

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Startup Cost

How much capital to launch & run.

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Payroll & Labor Cost

Fully-loaded cost of your team.

Smarter money decisions, in seconds

Running a business means making financial calls every day — whether a loan payment fits your cash flow, what price protects your margin, or how much runway you really have. Business Calculator Hub gives you a growing library of free, no-nonsense calculators that do the math instantly, right in your browser. Nothing is stored, nothing is sent, and there's no account to create.

Every tool shows not just the answer but the breakdown behind it, so you understand the numbers well enough to act on them. Start with the Business Loan Calculator or browse the full list.