Common use cases
- Add or remove 10% Australian GST
- Work out profit margin and markup
- Calculate billable hours and pay
- Estimate total job cost before quoting
GST Calculator
Add or remove GST quickly for Australian invoices, quotes, and basic pricing checks.
Profit Margin Calculator
Calculate selling price, profit, margin, and markup for products or services.
Hourly Rate Calculator
Work out a sustainable hourly rate from income goals, billable hours, overheads, and profit.
Percentage Calculator
Work out percentages, find what percent one number is of another, and calculate percentage change.
Unit Converter
Convert between metric and imperial units for length, weight, temperature, volume, speed, and area.
Date Range Calculator
Calculate days, weeks, business days, deadlines, and time between dates.
Timesheet Calculator
Calculate work hours, breaks, overtime, and estimated pay entirely in your browser with no uploads.
Job Cost Calculator
Estimate labour, materials, overhead, contingency, markup and GST locally in your browser with no uploads.
Calculator
A straightforward calculator for everyday arithmetic — add, subtract, multiply, divide.