Formula columns
Cost = Duration × Day rate. Write the formula once for the whole column. Insert rows, move tasks, nothing to drag down and nothing to break.
Plan like a Gantt chart. Calculate like a spreadsheet.
The Gantt chart that calculates for you
Add columns for cost, hours or status and write the formula once. Totals, dates and late flags keep themselves up to date as your plan changes.
No signup for the demo. Full refund if we don't launch.
From the maker of QuickGantt, the Excel Gantt template rated 4.7 stars by 125+ buyers on Etsy.
Everything a spreadsheet plan does, without the fragile parts
Costs that add up
Put someone on a task and the cost appears. Groups and the whole plan total themselves, so the budget is always current.
Schedules that move themselves
Link your tasks. When one runs long, everything after it moves, counting working days and your holidays only.
Late tasks flagged
Anything behind schedule turns red on its own, and the dashboard tells you what's late, what's next and how much is spent.
- Excel formulas you already know: IF, SUM, ROUND, WORKDAY, NETWORKDAYS, TODAY
- Holiday calendars for the US, UK, Sweden, Norway, Denmark and Finland
- Paste tasks straight from Excel or import a CSV
- Prints on as many pages as you need, task names on every page
How it works
- Type your tasks. Name, start, duration, just like a spreadsheet. Paste them from Excel if you have them.
- Add the columns you need. Cost, hours, status, anything. One formula per column.
- Watch the chart keep up. Change a date or a rate and every bar, total and late flag updates instantly.
Founding member: $49 for your first 12 months of Pro
Pro will be $9 a month or $79 a year at launch. Founding members pay $49 now, and keep $49 a year for as long as they stay subscribed.
Pro at launch includes:
- Unlimited projects and tasks
- Unlimited formula columns
- Save to the cloud and open from any browser, Windows or Mac
- PDF and PNG export, multi-page
- Import from Excel, CSV and QuickGantt files
- Holiday calendars and a custom working week
The deal: launch is planned for February 2027. You get early access to the private beta from January. If you change your mind, ask for a refund any time up to 30 days after launch. If Pro isn't live by 31 March 2027, you're refunded automatically.
Become a founding member for $49Only the first 50 founding members get this price. Payment is handled by Lemon Squeezy; VAT and sales tax are included at checkout.
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 requests I get are for things a spreadsheet can't do well: formulas that don't break, charts that print, plans that work on any computer. GanttCalc is the version I couldn't build inside Excel. Founding members help decide what goes in it, and I read every reply.
FAQ
Is this a real product yet?
The demo is real: the formula engine you're editing is the one Pro runs on. The full app (accounts, cloud save, export, import) is being built now and launches in February 2027. Founding members get the beta first.
What if it never launches?
You get your $49 back automatically on 31 March 2027. No need to ask.
Do I need Excel?
No. GanttCalc runs in any modern browser on Windows, Mac or Linux. No macros, no install.
Can I bring my existing Excel plan?
Yes. Paste rows straight in, or import an Excel or CSV file. QuickGantt files import too.
Is there a free version?
Yes. The free plan saves on your own computer and has a project limit. Pro adds cloud save, export, import and unlimited projects.
What about my team?
Founding member Pro is for one person. A Team plan for 5 editors at $29 a month comes after launch, with no per-seat pricing.
Where is my data stored?
On the free plan, only in your browser. On Pro, in our EU or US cloud storage, encrypted. We never sell or share it.
Can I pay by invoice?
Lemon Squeezy gives you a receipt with VAT details for your company. Email me if you need something else.