10 Calculators Every Small Business Owner Needs

Running a small business means juggling pricing, margins, taxes, payroll and projections. These ten calculators save accountants from screaming.

Ask ten experts and you will get twelve answers. The underlying math, thankfully, only has one. Running a small business means juggling pricing, margins, taxes, payroll and projections. These ten calculators save accountants from screaming.

Profit and margin

Set prices that actually make money.

Break-even

How many units must you sell to cover costs.

Loan EMI

Equipment financing, real estate loans.

Payroll

Net pay after deductions for staff.

VAT/GST

Inclusive vs exclusive pricing.

Discount

Sale planning without giving away the margin.

Inventory turnover

How fast stock cycles — too slow ties up cash.

Currency conversion

If you sell internationally.

Hourly rate

What to charge for your time honestly.

Tip and bill split

Client lunches, team outings.

Pro tips

  • Build a calculator stack into your business workflow.
  • Bookmark a folder; train staff to use the same tools.

Frequently asked questions

Should I use accounting software too? Yes — for monthly bookkeeping. Calculators are for quick decisions.

What about ROI calculators? Crucial for marketing, asset purchases, hiring decisions.

Bookmark the calculator linked above — you will need it more often than you think.

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