EMI Calculator
Calculate monthly EMI for loans and mortgages.
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38 Financial Tools Available
Free financial calculators for smarter everyday decisions
Use free online tools for mortgages, loans, investments, taxes, debt payoff, salary planning, and retirement goals. Compare scenarios quickly, understand the trade-offs, and make more confident decisions with practical estimates.
38+Financial Tools
3US-focused pages
7UK-focused pages
Our financial calculators
Browse the full calculator library, search by title, and filter by topic.
Compound Interest
Calculate compound interest and investment growth.
Open CalculatorSIP Calculator
Plan systematic investment contributions and future value.
Open CalculatorLoan Eligibility
Estimate borrowing capacity based on income and obligations.
Open CalculatorInterest Rate Calculator
Estimate interest amount using simple loan assumptions.
Open CalculatorLoan Comparison
Compare multiple loan offers side by side.
Open CalculatorInflation Calculator
Measure inflation impact on future purchasing power.
Open CalculatorRetirement Planning
Project retirement corpus needed for long-term goals.
Open CalculatorNet Worth Calculator
Compare assets and liabilities to estimate net worth.
Open CalculatorDebt Payoff
Estimate payoff timeline and interest for extra monthly payments.
Open CalculatorIncome Tax Calculator
Estimate annual income tax using a flat effective rate.
Open CalculatorGST Calculator
Add or remove GST from a price.
Open CalculatorFD Calculator
Calculate fixed deposit maturity value.
Open CalculatorRD Calculator
Calculate recurring deposit maturity value.
Open CalculatorCrorepati Goal
Estimate monthly savings needed to hit a wealth target.
Open CalculatorSalary Savings Planner
Plan monthly savings from income and expenses.
Open CalculatorBuy vs Rent
Compare buying and renting over a chosen time horizon.
Open CalculatorFreelancer Income
Estimate freelance revenue after costs and taxes.
Open CalculatorMortgage Calculator
Monthly payments, PITI estimate, and 15 vs 30 year comparison.
Open CalculatorAuto Loan Calculator
Monthly car payments, total interest, and term comparison.
Open CalculatorPersonal Loan Calculator
Repayment estimates and APR comparison support.
Open CalculatorStudent Loan Calculator
Estimate student loan payments, payoff period, and interest.
Open CalculatorCredit Card Payoff Calculator
Estimate payoff time and interest saved with extra payments.
Open CalculatorUS Income Tax Calculator
Federal plus state estimate and yearly take-home pay.
Open Calculator401(k) / IRA Calculator
Retirement savings projection with employer match assumptions.
Open CalculatorSalary / Paycheck Calculator
Estimate net pay after federal, state, and FICA deductions.
Open CalculatorRefinance Calculator
Estimate monthly savings and break-even period after refinancing.
Open CalculatorDebt-to-Income (DTI) Calculator
Measure debt-to-income ratio for mortgage qualification.
Open CalculatorUK Mortgage Repayment Calculator
Estimate monthly mortgage payments and repayment vs interest-only.
Open CalculatorStamp Duty (SDLT) Calculator
Estimate UK stamp duty with first-time buyer option.
Open CalculatorIncome Tax / NI Calculator
Estimate UK income tax, National Insurance, and net pay.
Open CalculatorUK Salary Calculator
Estimate annual and monthly take-home pay after tax and NI.
Open CalculatorVAT Calculator
Add or remove VAT at UK style rates.
Open CalculatorUK Loan Repayment Calculator
Estimate loan repayments, overpayments, and total interest.
Open CalculatorCouncil Tax Calculator
Estimate annual council tax using a band and local multiplier.
Open CalculatorPension / Retirement Calculator
Project pension pot growth and target retirement balance.
Open CalculatorCapital Gains Tax (CGT) Calculator
Estimate capital gains tax after allowance and rate.
Open CalculatorCorporation Tax Calculator
Estimate corporation tax on company profits.
Open CalculatorUseful financial planning tools
Each calculator is built to help visitors estimate common financial decisions with clear inputs and practical outputs.
Public access, no sign-up required
Visitors can use the tools freely without creating an account or installing an app.
US + UK coverage
Use dedicated country hubs for regional calculators and supporting internal links.
Fast scenario testing
Change one input at a time and compare monthly payments, take-home pay, or future balances instantly.
Built for real comparisons
Try multiple scenarios side by side to see how rates, contributions, deductions, or terms affect the outcome.
Responsive by default
Works on mobile, tablet, and desktop without a separate app or login wall.
Why people use this finance calculator service
People usually come to finance calculators with a very specific question: What will this cost me? How much can I save? What will I take home? A helpful calculator page answers that question clearly and then gives visitors enough context to make sense of the result.
Zenivra brings calculators, plain-language explanations and worked examples together in one place. You can start with one estimate, such as a mortgage payment, and continue into related questions like your debt-to-income ratio, whether refinancing pays off, or how a pay rise changes your take-home pay.
Your numbers stay with you
Calculations run in your browser. We do not ask for your name, and the figures you type are not saved on our servers.
Explained, not just calculated
Each tool shows the formula it uses, and our guides walk through worked examples so you can check the logic yourself.
Checked against official sources
Tax bands, allowances and contribution limits are taken from the IRS, GOV.UK and HMRC, and guides show when they were last updated.
Frequently asked questions
Do I need an account to use the calculators?
No. You can use the calculators immediately without creating an account.
Are the results financial advice?
No. The calculators and guides are educational planning tools. Use them to understand the numbers and compare options, then confirm important decisions with your lender, employer, tax authority or a qualified adviser.
How up to date are the tax figures?
US figures use the 2026 federal brackets, standard deduction and contribution limits. UK figures use the 2026/27 tax year. Rates change, so check the date shown on each guide and the official source it links to.
Do you store what I enter?
No. The calculators work in your browser, and the values you enter are not sent to or saved on our servers. See our privacy policy for details.
Money guides
Plain-English explanations with worked examples. See all 15 guides
How Mortgage Amortization Works (and How Extra Payments Save Thousands)
See how each mortgage payment splits between interest and principal, why early payments are mostly interest, and how small overpayments shorten the loan.
Read the guideFixed vs Adjustable-Rate Mortgage: Which One Fits You?
How fixed and adjustable-rate mortgages work, what rate caps mean, and a simple way to decide based on how long you plan to keep the loan.
Read the guideWhen Does Refinancing Make Sense? The Break-Even Rule
Use the break-even point to judge a refinance: compare closing costs with monthly savings, watch the reset term, and avoid the common traps.
Read the guideRent vs Buy: How to Run the Numbers Honestly
Compare renting and buying on total cost, not the monthly payment: unrecoverable costs, the 5% rule, time horizon and the value of flexibility.
Read the guideDebt-to-Income Ratio: What Lenders Look For
What front-end and back-end DTI mean, how to calculate yours, the ranges lenders commonly use, and practical ways to bring the ratio down.
Read the guideDebt Avalanche vs Debt Snowball: Which Payoff Plan Works Better?
A worked example of both debt payoff methods, how much interest each saves, and how to pick the one you will actually stick with.
Read the guide