AMTake’s free online calculators make everyday finance, tax, health and math simple. Instantly calculate GST, EMI, SIP returns, income tax, BMI, percentages, discounts, interest and more with accurate, real-time results. Whether you’re a student, professional, business owner or investor, our calculator tools help you plan budgets, compare loans and make confident decisions in seconds. Every calculator is mobile-friendly, needs no sign-up, and works right in your browser — fast, reliable and free forever.
Calculators for Money, Tax, Health and Study
A good calculator does more than return a number — it shows the working, recalculates the instant you change an input, and gives you the confidence to make a decision. AMTake’s calculators span loans and investments, tax and business, health, academics and everyday maths. Each one is built on the standard, publicly documented formula for that calculation, with the breakdown laid out so you can see exactly how the answer was reached.
Loans & EMI
Work out the monthly payment, total interest and payoff before you borrow with the EMI, loan and mortgage calculators.
Investments & savings
Project returns on a SIP, see the power of compound interest, or compare RD vs FD and PPF maturity.
Tax & business
Add or remove GST, estimate your income tax, and price confidently with the profit margin and discount calculators.
Academic & exam
Convert CGPA to percentage, calculate your GPA, or turn exam marks into a percentage and division.
Everyday maths
Find a percentage, split a bill with the tip calculator, solve fractions, or open the full scientific calculator.
Built to Be Trusted, Not Just Fast
Standard formulas
Every result uses the established, publicly documented formula, so the numbers match what a bank, exam board or textbook would give.
Shows its working
You get more than a figure — the breakdown, and often a chart or table, so you can see how the answer was reached and trust it.
Live results
Answers update the instant you type or move a slider — no submit button — so you can compare two scenarios side by side in seconds.
Your figures stay private
Calculations run in your browser, so the income, loan or health numbers you enter are never uploaded or stored anywhere.
How to Use a Calculator on AMTake
- Enter your values Type your amounts into the fields — a loan sum, an income, a date of birth or a set of marks.
- Set the options Choose the rate, tenure, tax regime, units or grading scale that fits your situation; the result recalculates live.
- Read the result & breakdown See the headline figure plus the step-by-step working, then download or print a report if you need one.
Popular Calculations, Made Simple
Some numbers you just need to get right. Before taking a loan, run the EMI calculator to see the true monthly cost and how the tenure changes your total interest. Planning to invest? Compare a monthly SIP against a lump sum and let compounding do the work. Selling online, add or remove GST and check your profit margin in one go. And at results time, convert your CGPA to a percentage using your board’s exact formula. Each calculation is instant, transparent about its method, and completely free.
Frequently Asked Questions
Are these online calculators free to use?
Yes. Every calculator on AMTake — finance, tax, health, academic and maths — is completely free, with no sign-up, no limits and no watermark. You can run as many calculations as you like at no cost.
How accurate are the calculators?
Each calculator uses the standard, publicly documented formula for its calculation — the same maths a bank, exam board or textbook uses — so results are precise for the inputs you enter. For big money, tax or health decisions, treat them as reliable estimates and confirm the specifics with a professional.
Do the calculators store or share my financial or personal data?
No. Calculations run entirely in your browser, so the income, loan amounts, health measurements or marks you enter are never uploaded to a server or saved. When you close the tab, the data is gone.
Which calculator should I use for a loan or an investment?
For borrowing, use the EMI, loan or mortgage calculator to see your monthly payment and total interest. For growing money, use the SIP, compound interest, PPF or RD/FD calculator to project returns. The cards above group every calculator by purpose so you can pick quickly.
Do the results update automatically as I change the numbers?
Yes. Results recalculate live as you type or move a slider — there is no submit button. That makes it easy to compare scenarios, such as a 15-year versus a 20-year loan, side by side in seconds.
Can I see the formula or how the result was calculated?
Yes. Most calculators show a breakdown next to the answer — the formula, the step-by-step working, and often a chart or table — so you can understand and trust the figure rather than reading a single number.
Are these calculators suitable for India (GST, EMI, income tax)?
Yes. The GST calculator (with CGST/SGST/IGST and current slabs), income tax calculator (new regime), EMI, SIP and PPF calculators, and the CGPA and marks converters are built with Indian rules and formats in mind, while general calculators like percentage and BMI work anywhere.
Can I use the calculators on my mobile phone?
Yes. Every calculator is mobile-first and works in any browser on Android and iPhone, tablets and desktops, so you can crunch a number wherever you are.
Do the calculators work offline?
Because the maths runs in your browser, most calculators keep working even if your connection drops after the page has loaded. Only tools that fetch live data, like the currency converter, need an internet connection.
Can I download or print my calculation as a report?
Many calculators let you download or print a clean report of your inputs and results — handy for loan comparisons, an amortisation schedule, or keeping a record of a tax or health estimate.
Are the finance and tax results official financial advice?
No. The calculators give estimates for planning and education based on standard formulas and the inputs you provide. They are not financial, tax, investment or medical advice — confirm important decisions with a qualified professional. See our Disclaimer.
Do I need to create an account to use a calculator?
No. There is no registration, login or email required. Open any calculator and start immediately — none of your details are collected.
Can I use these calculators for business or professional work?
Yes. All calculators are free for personal and commercial use, so freelancers, accountants, teachers and business owners can use them for quotes, invoices, payroll, grading and planning at no cost.
How current are the tax rates and GST slabs used?
The tax and GST calculators reflect the current rates and slabs, and we update them when the rules change. Because rates can change between budgets, confirm the latest figures with the official source before filing.
What is the difference between the EMI, loan and mortgage calculators?
All three calculate a monthly payment on a reducing-balance basis but add different extras: the EMI calculator is a clean loan view popular in India, the loan calculator adds sales tax and trade-in options for auto and personal loans, and the mortgage calculator adds property tax, insurance, PMI and a full amortisation schedule for home loans.