Profit Calculator
Net profit, margins and a full expense breakdown with a live donut chart.
Open
Live calculations, no signup
Business calculations, instantly.
Pick a tool and start crunching. Numbers update as you type, scenarios save with one click.
Tax Calculator
VAT and sales tax aware of 8+ countries. Switch between net and gross instantly.
OpenROI Calculator
Investment returns over time with compounding, break-even and a growth chart.
OpenCurrency Tool
Multi-currency conversion with 12 currencies, 7-day rate trend and history.
OpenRecent calculations
5 scenariosProfit Calculator
Live breakdown of revenue, costs and net margin.
Inputs
Everything recalculates as you type.
Revenue
monthly
€
EUR
Operational Expenses
rent, software, utilities
€
Ads Cost
marketing & paid acquisition
€
Employees
headcount × cost each
#
€
Total employee cost: €11,200
Results
All values updated in real-time.
Net Profit
€0
Net of all costs
Profit Margin
0%
vs. revenue
Expenses Ratio
0%
opex + ads of revenue
Employee Cost
0%
payroll share
Break-even
—
revenue needed
Revenue Breakdown
Where every euro goes.
Margin
0%
of revenue
Tax Calculator
VAT and sales tax for 8 countries, with included / excluded toggle.
Select country
Each region uses its standard VAT or sales tax rate.
Amount
Switch between net and gross with one toggle.
Net price
Rate: 21%
€
Tax included in amount
Currently treating amount as net.
Result
Spain · VAT 21%
Gross price (incl. tax)
€0
Net price
€0
Tax amount
€0
How the money flows
Customer pays you, you pay the government.
You charge
€0
Customer pays
€0
Government gets
€0
ROI Calculator
Investment growth with optional compounding.
Investment
Define amount, period and rate.
Investment Amount
$
Period
Expected Annual Return
Reinvest gains (compounding)
Currently using compound growth.
Outcome
Projected at the end of the period.
Final Value
$0
+0 vs principal
Total ROI
0%
Net Profit
$0
Break-even
—
when gains cover principal
Effective Monthly
0%
Growth over time
Investment value month-by-month.
Currency Tool
12 currencies, live conversion, 7-day trend.
Convert
Live rates — mocked for demo.
From
€
To
$
1 EUR = 1.0800 USD
Conversion
$0
100 EUR equals this amount
7-day trend
EUR → USD past week
Recent conversions
Click any item to load it back.