The Gantt chart that works like your spreadsheet, and never breaks.

Sound familiar?

These are real things people wrote about their Excel Gantt charts:

• “You can't change part of an array.”
• “Is there a way to have the bars not fill in across the weekends?”
• “I can't seem to print anything but the first page.”
• “Has anyone built a dynamic Gantt chart in Excel that didn't break the moment a date changed?”

Excel is great for numbers. It was never built to be a scheduler, so every template ends up as a pile of fragile formulas, conditional formatting and, often, macros your IT team blocks.

How it works

1. Type your tasks like a spreadsheet. Name, start, duration. Paste them straight from Excel if you have them.
2. Add the columns you need. Cost = Duration × Day rate. Status = late if today is past the finish. You write the formula once for the whole column, so it can't break when you add rows.
3. Watch the chart keep up. Change a date or a rate and every bar, total and late flag updates instantly.

Why it doesn't break

• Insert rows without breaking anything. Formulas belong to the column, not to individual cells, so there's nothing to drag down and nothing to corrupt.
• Real working days. Bars skip weekends, and holiday calendars for the US, UK, Sweden, Norway, Denmark and Finland are built in.
• Late tasks turn red on their own. One click, no formula needed.
• Prints on as many pages as you need, with the task names repeated on every page and fonts you can actually read.
• Familiar formulas. IF, SUM, MIN, MAX, ROUND, WORKDAY, NETWORKDAYS, TODAY. If you know Excel, you already know GanttCalc.

Who's building it

Hi, I'm Kacharuk. I make QuickGantt, an Excel Gantt template that's sold more than 125 copies on Etsy in the past year and is rated 4.7 stars. The most common complaints I get are the ones above: macros blocked at work, formulas that break, charts that won't print. GanttCalc is the version I couldn't build inside Excel. Founders help decide what goes in it, and I read every reply.