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💼Business Tools

Business tools for the operational numbers a small business runs every week: average order value, customer acquisition cost, churn forecasting, SaaS plan break-even, margin and markup, hourly rate setting for service work, time-clock tracking, and invoice generation. The math is the standard textbook math; the value is in surfacing the inputs side-by-side so a comparison stays apples-to-apples and the levers that actually move the result are visible. The common misconception that costs the most money is conflating margin with markup; they sound similar but a 50% markup is only a 33% margin, and a 50% margin requires a 100% markup, which the Margin and Markup Calculator shows side by side. A second common mistake is using gross AOV instead of AOV-net-of-discounts when comparing channels; the AOV Calculator surfaces both. If you are new to the category, start with the Hourly Rate Calculator if you bill for your time (it works backward from your target take-home), the AOV Calculator and CAC Calculator together for any ecommerce business, and the Invoice Generator for the actual document. The SaaS Churn Forecast and SaaS Tiered Plan Break-Even Calculator are the right starting point for subscription businesses that want a clear picture of their unit economics before raising or repricing. None of the tools require an account; the outputs are yours to copy or download.

14 tools available

AOV Calculator - Average Order Value Calculator

Divides total revenue by number of orders to produce the average order value (AOV).

32 views
v1.0.0

Barcode Label Generator

Generates barcode labels for UPC-A, EAN-13, ISBN, GTIN-14, Code 128, and GS1-128 symbologies, with check digits computed (not assumed) from the supplied...

38 views
v1.0.0

Break-Even Calculator

Computes break-even units = fixed costs ÷ (revenue per unit - cost per unit), plus break-even revenue, margin, and markup.

302 views
v1.0.0

Comic Grading Calculator

Comic book grade on the standard 10-point scale, starting at 10.

25 views
v1.0.0

Customer Acquisition Cost (CAC) Calculator

Computes CAC = (marketing spend + sales spend + other spend) ÷ new customers acquired over the same period.

23 views
v1.0.0

Hourly Rate Calculator

Hourly rate combining after-tax income, tax obligation, business expenses, insurance, and retirement, divided by projected billable hours.

23 views
v1.0.0

Invoice Generator

In-browser invoice builder that totals line items with optional percentage or flat-amount discount and a tax rate applied after discount.

23 views
v1.0.0

Margin and Markup Calculator

Converts between cost, selling price, profit, margin percentage, and markup percentage given any two.

289 views
v1.0.0

Monthly Net Calculator

Converts pay (monthly/biweekly/semi-monthly/weekly/annual) to a monthly basis, then subtracts federal, state, Social Security, and Medicare tax.

25 views
v1.0.0

Packing Efficiency Calculator

Three-way packing efficiency solver: enter any two of Packing Ratio, Volume of Object, and Volume of Container, and the third is computed.

369 views
v1.0.0

Photography Quote Calculator

Builds a photography quote by stacking base salary, logistics, shoot costs, and post-production, then applies a configurable profit margin and tax.

24 views
v1.0.0

SaaS Churn Forecast

Projects MRR, active customers, churn count, and cumulative revenue month by month over a horizon up to 120 months.

21 views
v1.0.0

SaaS Tiered Plan Breakeven Calculator

Compares any number of SaaS tiers, each defined by a monthly price, included units, and an overage rate per extra unit.

21 views
v1.0.0

Time Clock Calculator

Sums work hours per entry as clock-out minus clock-in minus break, treating clock-out earlier than clock-in as crossing midnight.

16 views
v1.0.0