Financial Tools
Free Financial Calculators
Mortgage, investment, salary and tax calculators that run entirely in your browser. Accurate, private, and free — no sign-up, no downloads, no data leaves your device.
Financial Calculators
Mortgage and loan payments, compound interest, SIP, ROI, US and India tax, salary and net worth — every money tool in one place.
- Mortgage, affordability & payoff
- Compound interest, SIP, SWP & ROI
- US & India tax, break-even, net worth
International Calculators
UK income tax, UAE and EU VAT, a Zakat calculator, a multi-currency converter, and an international salary comparison.
- UK income tax 2025-26
- UAE, EU VAT & Zakat
- Currency converter & salary comparison
Financial calculators
Mortgage & Loan
Estimate monthly payments, see how much house you can afford, and plan an early payoff for mortgages, loans, and credit cards.
- Mortgage payment + amortization
- Home affordability (28% rule)
- Loan & credit-card payoff
Investment & Wealth
Project the growth of your savings and investments with compound interest, SIP and SWP planning, inflation, and ROI — in USD or INR.
- Compound interest & SIP
- SWP & inflation impact
- ROI with currency toggle
Salary, Tax & Net Worth
Convert salary to hourly pay, estimate US federal tax for 2025, compare India's new vs old regime for 2025-26, and track your net worth.
- Salary → hourly converter
- US 2025 & India 2025-26 tax
- Break-even & net worth
Quick access
Jump straight to any of the 20 calculators.
About the tools
Every financial calculator you need, in one place.
A good financial calculator turns a fuzzy money question into a clear number you can act on. Whether you are working out a mortgage payment, projecting how a monthly investment compounds over twenty years, or estimating the tax you'll owe this year, the right calculator removes the guesswork. CrispToolHub brings the most useful free financial calculators together into a single, fast, privacy-first suite that works on your phone, tablet, or computer.
The mortgage and loan calculators help with the biggest purchase most people ever make. Estimate your monthly principal-and-interest payment, see a full amortization schedule, find out how much house your income supports under the classic 28% rule, and model how extra payments can shave years off a mortgage or wipe out credit-card debt faster. Each result updates in real time as you type, so you can test scenarios instantly.
The investment calculators are built for long-term planning. A compound interest calculator shows how principal and regular contributions grow over time; a SIP calculator projects the value of a monthly mutual-fund investment; an SWP calculator models steady withdrawals in retirement; and an inflation calculator reveals how much buying power your money loses over the years. Every figure can be shown in US dollars or Indian rupees with a single tap.
Salary, tax, and net worth in minutes
The salary and tax calculators answer the everyday questions about take-home pay. Convert an annual salary into hourly, weekly, and monthly equivalents; estimate your US federal tax using the official 2025 brackets; or compare India's new and old tax regimes for 2025-26 side by side, complete with standard deduction, 80C, 80D, HRA, home-loan interest, surcharge, and cess. A break-even calculator helps small businesses find the sales volume that turns a profit, and a net worth calculator adds up your assets and liabilities to show where you stand today.
Because every calculation happens in your browser, nothing you enter — income, balances, loan amounts — is ever uploaded or stored on a server. There is no account to create and no limit on how often you can use the tools. That combination of accuracy, speed, and privacy is what makes these the financial calculators people keep coming back to. Pick a section above to get started, and use the share button on any calculator to copy a link that reopens it with your numbers already filled in.
FAQ
Frequently asked questions
What is the best free financial calculator?
The best free financial calculator is one that covers the decision you actually face — a mortgage payment, a SIP projection, a tax estimate — without asking you to sign up or pay. CrispToolHub bundles mortgage, loan, investment, salary, and tax calculators into one fast, private suite that runs entirely in your browser, so you can move between related calculations without juggling separate sites or apps.
How accurate are online financial calculators?
Online financial calculators are highly accurate for the math they perform — payment schedules, compound interest, and tax brackets all follow fixed formulas. The accuracy of the result depends on the accuracy of your inputs and on factors a formula can't predict, such as future interest rates, market returns, fees, or mid-year tax changes. Treat the output as a precise estimate for planning, not a guaranteed figure.
Can I use these calculators for US taxes?
Yes. The salary section includes a US federal tax bracket calculator using the official 2025 brackets for single, married filing jointly, married filing separately, and head-of-household filers. It estimates your effective rate, marginal rate, federal tax, and take-home pay. It does not include state taxes, FICA, or every credit and deduction, so use it as a planning estimate rather than a substitute for filing software or a tax professional.
Are these calculators free to use?
Every calculator on CrispToolHub is completely free, with no account, no paywall, and no download. The tools run locally in your browser, so your income, balances, and other figures never leave your device. The site is supported by unobtrusive advertising, which lets us keep the entire financial calculator suite free for everyone.
Which financial calculator should I use?
Start with the question you're trying to answer. Buying or refinancing a home? Use the mortgage and affordability calculators. Planning long-term savings or a monthly investment? Use the compound interest or SIP calculator. Figuring out pay or taxes? Use the salary, US tax, or India tax calculator. Tracking overall financial health? Use the net worth calculator. Each section page lists its tools so you can jump straight to the right one.