Plan, budget and decide with confidence.
Currency, tax, interest and savings calculators with transparent formulas you can verify.
Popular Finance tools
Compound Interest Calculator
Project savings growth with compounding and deposits.
Loan / EMI Calculator
Estimate monthly repayments, total interest and cost.
Profit Margin Calculator
Find profit, profit margin and markup from your cost and selling price.
Simple Interest Calculator
Calculate simple interest and the total amount from principal, rate and time.
Sales Tax Calculator
Add sales tax to an amount, or extract the net and tax from a total.
Savings Goal Calculator
See how many months it takes to reach a savings goal at your monthly rate.
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Compound Interest Calculator
Project savings growth with compounding and deposits.
Simple Interest Calculator
Calculate simple interest and the total amount from principal, rate and time.
Sales Tax Calculator
Add sales tax to an amount, or extract the net and tax from a total.
Profit Margin Calculator
Find profit, profit margin and markup from your cost and selling price.
Learn about Finance
Loan & EMI Calculator: Know Your Monthly Payment
Estimate your monthly EMI, total interest, and total cost with the ToolOrbit Loan Calculator, and understand the formula behind every payment.
Compound Interest Calculator: Grow Your Savings
Project how your savings grow over time with the ToolOrbit Compound Interest Calculator, including regular contributions and different compounding frequencies.
Simple Interest Calculator: Formula, Steps, Examples
Learn how simple interest works with the I = P·r·t formula, then compute interest and totals fast using ToolOrbit's free browser calculator.
Sales Tax Calculator: Add or Remove Tax Correctly
Add sales tax to a price or reverse-extract the net and tax from a tax-inclusive total. See the formulas and use ToolOrbit's free browser tool.
Profit Margin Calculator: Margin vs Markup Explained
Understand the difference between profit margin and markup, see both formulas, and compute them instantly with ToolOrbit's private browser tool.
Savings Goal Calculator: Reach Your Target on Time
Find out how many months it takes to hit a savings goal and your target date, using ToolOrbit's free, private browser calculator.
Finance FAQ
Yes — every tool is free with no account required.
Most tools run entirely in your browser, so once the page loads they keep working without sending your data anywhere.