List out the work, put the hours and rate next to each task, and it totals your billable hours and the invoice amount as you type. Add as many lines as the project needs.
Lumping a whole project into a single "40 hours at $90" line hides where the money came from. Break it into tasks and the invoice tells a story: what you spent time on, what it was worth, and where the hours piled up.
It also makes the invoice easier to defend. When a client asks why a number looks the way it does, an itemized breakdown answers the question before it turns into a negotiation.
The blended rate is the honest one. You might charge a premium for the headline work, but if half the project is revisions at a lower rate, your real earnings per hour sit somewhere in the middle.
Keep an eye on it across projects. If your blended rate keeps landing well below your headline rate, it's usually a sign that scope creep or unbilled admin is eating your margins.
That's exactly why each row has its own rate. Design at one price, development at another, revisions at a discount, whatever your setup is. The tool adds them all up and hands you a single invoice total.
It's your invoice divided by your total hours, so it shows what you effectively earned per hour across the whole job. Handy for spotting when a pile of low-rate revision hours is quietly dragging down an otherwise well-paid project.
Use decimals. Forty-five minutes is 0.75, fifteen minutes is 0.25. Rounding everything up to the nearest hour feels generous to you, but clients notice, so track the real time and let the tool do the arithmetic.
It keeps things focused on labor, so the total is your billable work before any tax or reimbursed costs. If you need to add sales tax to the final quote, run the number through the discount and tax tool afterward.
Freelancers get the most out of it, but agencies, consultants, contractors, and anyone who bills by the hour can use it the same way. Any work where hours times a rate equals an invoice fits.