Search calculators and tools

Start with one locale for tighter matches, then switch to all languages when you want a wider result set.

Try one short keyword first, then add one specific term such as unit, tax type, school level, or region.

If results are too broad, keep the same keyword and narrow by locale or topic hub.

If results are empty, simplify the query and remove extra words before trying again.

You can also open a topic collection below, then narrow inside that hub.

Topic collections

Start from a task family when you know the workflow but not the exact page name yet.

• Random & lotteries
  Random picker, weighted draws, dice tools, and probability calculators.
• Probability & simulation
  Simulators and probability calculators: trees, combinatorics, and distributions.
• Statistics (inference & tests)
  Confidence intervals, hypothesis tests, regression, and uncertainty.
• Data visualization
  Quick charts, histograms, box plots, and regression.
• Dev & data
  JSON formatter, UUIDs, subnet/CIDR, random CSV test data, and text tools.
• Paper & templates
  Printable paper templates: graph paper, notes, worksheets, and planners.
• PDF tools
  Compress, merge, split, and convert PDFs in your browser.
• Loans & mortgages
  Payments, schedules, affordability, and interest.
• Taxes
  VAT/GST, net↔gross, and quick tax math.
• Investing & Wealth Building
  Estimate NISA, SIP, compound growth, retirement balance, and savings goals in one place.
• Finance Functions
  PV/FV/PMT, NPV/IRR, and rate conversion calculators in one place.
• Real Estate
  Plan mortgage repayment, amortization, and borrowing capacity with one workflow.
• Business Finance & Accounting
  Estimate pricing, breakeven, and investment decisions (NPV/IRR) together.
• Paint & coatings
  Coverage, area, cost, and DFT/WFT calculators.
• Date & time
  Days between dates, business days, and time zones.
• Geometry & graph
  Triangles, vectors, 2D/3D geometry, and graph tools.
• Study & classroom
  Worksheets, graph paper, GPA, and learning helpers.
• Unit conversion
  Unit converter, temperature, length, currency, and base conversion.
• Health & fitness
  BMI, body fat, calories, and heart rate zones.