Calculators

Free, with the working shown.

Value and inflation

Loans and investments

Profit and growth

Tax

About these calculators

Business Loan Calculator
Monthly payment, total interest and a full schedule, plus whether your income covers the payments (DSCR).
DSCR Calculator
Debt service coverage ratio from your income and loan payments, what a lender’s minimum leaves room for, and the largest loan that fits.
NPV & IRR Calculator
Is an investment worth it? Net present value, internal rate of return and payback from the money in and out.
Profit Margin & Markup
Margin and markup side by side, because they are not the same number.
EBITDA Calculator
EBITDA and EBITDA margin, from net income up or from revenue down.
Growth Rate (CAGR) Calculator
The steady yearly growth rate between two values: sales, revenue, an investment or anything else.
Sales Tax Calculator
Add tax to a price, or take it back out of a total, at any rate you enter.
Self-Employment Tax Calculator
Your 2026 self-employment tax and income tax on 1099 profit, worked out the way the return does it (brackets, standard deduction, QBI), and the safe-harbor amount to pay each quarter.
Business Valuation Calculator
Value a business from its revenue and EBITDA four ways: what small businesses actually sell for, public-company multiples for your industry, and a capitalized cash flow at your industry’s required return, using NYU Stern’s January 2026 data for 94 industries.
Depreciation Calculator (MACRS, Section 179)
A year-by-year MACRS depreciation schedule from the IRS Publication 946 tables, with Section 179 and bonus depreciation at the 2026 limits and the Form 4562 lines filled in.
Inflation Calculator
What money from any month since January 1913 is worth today, from the official BLS consumer price index through the latest release, and a whole list of past amounts restated in today’s dollars.

Use a calculator

  1. Choose the calculation that fits the question.
  2. Enter your known values and check the units.
  3. Compare scenarios and treat the result as an estimate, not a guarantee.

Frequently asked questions

Do I need to create an account?

No. Every insytesBI calculator is free and opens straight to the inputs.

Are the results financial advice?

No. Results are estimates from the values you enter and do not replace advice from a qualified professional.