Finance Calculators

Loan and interest, currency conversion, gold value, inflation, discount, profit margin, ROI, ROAS, VAT and more. Make everyday financial decisions in seconds with free, browser-based tools.

15 tools · Free · No sign-up required

Alcohol Cost Calculator

See the monthly, yearly and lifetime cost of drinking, and how much you would save by cutting back or quitting. Enter your own prices in USD, EUR, GBP or TRY for a clear, eye-opening financial picture.

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Cost Calculator

Work out product cost with VAT and markup, the break-even point from your fixed and variable costs, or a project cost with overhead and risk margin. Supports USD, EUR and GBP for clear, confident pricing.

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Currency Converter

Convert USD, EUR, GBP and 30+ currencies with live exchange rates, an instant inverse rate and a quick-reference table. Ideal for travel budgets, online shopping and forex — no sign-up needed.

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Discount Calculator

Find the sale price, percent off and total savings, stack multiple discounts and calculate trade discounts with optional VAT. Works in USD, EUR, GBP or TRY for quick, accurate pricing decisions.

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Fuel Cost Calculator

Estimate the fuel cost of any trip from distance, fuel consumption and price per litre. Compare gasoline, diesel and LPG, see cost per kilometre and check your driving range — budget journeys with ease.

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Gold Calculator

Value gram gold, sovereign coins and bullion by karat — 22K, 24K, 18K and 14K — using live spot prices. See the worth of your gold in USD, EUR, GBP or TRY for buying, selling and savings decisions.

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IBAN Validator & Checker

Validate and parse any IBAN with the MOD97 algorithm. Check the country code, check digits, structure and length to catch typos before a transfer — with bank-name lookup included for Turkish IBANs.

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Inflation Calculator

Measure inflation between any two dates and see how the value of money changes over time, using official CPI data for USD, EUR and GBP from the BLS, Eurostat and ONS. Understand real purchasing power fast.

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Loan Calculator

Work out your monthly payment, total repayment and total interest from the loan amount, interest rate and term. View a full amortization schedule for mortgage, car and personal loans in USD, EUR or GBP.

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Pay Raise Calculator

Calculate your new salary after a percentage or fixed pay raise, find the raise rate between two amounts, and combine several cumulative raises. See the exact increase in take-home figures before and after.

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Profit Calculator

Calculate profit amount, profit margin and markup from your cost and selling price. Find the target price for any margin and see how a discount eats into profit — price products in any currency.

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ROAS Calculator

Calculate return on ad spend (ROAS) for Google Ads, Meta Ads and any campaign. Add product cost for net profit, run break-even analysis and use target-ROAS mode to find the spend your goals require.

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ROI Calculator

Calculate return on investment (ROI), net profit and payback period for any project. Switch between one-time and periodic monthly cash-flow modes, with results in USD, EUR, GBP or TRY for clear decisions.

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Smoking Cost Calculator

See the daily, monthly, yearly and lifetime cost of smoking, and exactly how much you would save by quitting. Enter your own price per pack in USD, EUR, GBP or TRY for a clear, motivating financial picture.

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VAT Calculator

Add VAT to a net price, remove VAT from a gross price, and find the net amount and tax separately. Use any VAT rate in USD, EUR, GBP or TRY — a fast, accurate VAT calculator for invoices and shopping.

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About Our Finance Calculators

Finance calculators help individuals and businesses back their money decisions with real numbers. Seeing the total interest before taking out a loan, tracking an exchange rate, valuing your gold savings or working out a product's profit margin are the foundations of sound financial decisions. This category brings together 15 free tools that cover the most common money calculations in one place.

Loan & Interest: Monthly Payment and Total Cost

The advertised monthly instalment rarely reflects the true cost of borrowing. The loan calculator works out your monthly payment, total repayment and total interest from the amount, rate and term, and shows a full amortization schedule. That makes it easy to compare lenders or different terms and find the most affordable option for a mortgage, car or personal loan.

Currency Conversion and Exchange Rates

The currency converter converts USD, EUR, GBP and 30+ currencies with live rates, an instant inverse rate and a quick-reference table. It is used daily by travellers planning a budget, shoppers buying from abroad and businesses invoicing in foreign currencies.

Gold, Inflation and Pay Raises

The gold calculator values gram gold, sovereign coins and bullion by karat (22K, 24K, 18K, 14K) using live spot prices. The inflation calculator measures how the value of money changes between two dates using official CPI data (BLS, Eurostat, ONS), while the pay raise calculator shows your new salary after any percentage or fixed increase.

Discount, Profit, Cost and VAT

For sales, bulk buying and pricing, the discount calculator finds the sale price, percent off and total savings. The profit calculator gives the gross margin and markup from cost and selling price, the cost calculator analyses break-even and project cost, and the VAT calculator adds or removes VAT at any rate.

ROI and ROAS for Investments and Ads

The most basic investment metric is ROI (return on investment): net gain divided by total investment. The ROI calculator gives the percentage return instantly. In digital marketing the standard metric is ROAS (return on ad spend): revenue divided by ad spend. The ROAS calculator evaluates Google Ads, Meta Ads and other campaign performance and can run break-even and target-ROAS analysis.

The Cost of Habits and Daily Spending

Small recurring costs add up fast. The smoking cost calculator and alcohol cost calculator reveal the daily, yearly and lifetime cost of these habits and how much you could save by quitting, while the fuel cost calculator estimates the cost of any journey — practical tools for everyday budgeting.

2026 Finance Topics — Comparison

Calculation What You Learn Typical Use Case
Loan & interestMonthly payment, total interest, APRComparing lenders before applying
Currency conversionConverted value, cross rateTravel, shopping abroad, invoicing
Gold valueValue by gram, coin and karatTracking savings, buy/sell decisions
InflationPurchasing-power change, real valueSalary and rent negotiations
DiscountSale price, savings amountSeasonal sales, bulk buying
Profit marginGross margin, markupProduct pricing, profitability
ROIReturn on investment %Investment and project decisions
ROASReturn on ad spendGoogle Ads, Meta Ads analysis
  • All finance tools use up-to-date 2026 rates and market data
  • Results are estimates; confirm exact figures with the relevant bank, institution or professional
  • Exchange rates and gold prices can change minute by minute
  • Everything you enter is processed only in your browser and never sent to our servers
  • All tools are free and require no sign-up

You can reach every tool above from the cards on this page and run any calculation instantly.

Finance Tools — Frequently Asked Questions

The finance tools on Kolay Hesaplasana are built on current rules, official tariffs and market data. Results are estimates — for big decisions such as a loan, insurance or investment, always confirm with the relevant institution or a qualified professional.

Yes. Everything you enter — loan amount, currency figures, profit margin and so on — is processed only in your own browser. No information is ever sent to or stored on our servers.

Exchange rates follow live market data, while interest and pricing assumptions reflect current conditions. For minute-by-minute price moves, use your bank's or broker's live data as the reference.

Yes. This category brings together loan and interest, ROI and ROAS, currency conversion, gold value, inflation, VAT, discount and profit tools — all in one place and all free.

Yes, every tool works on phones and tablets with the same quality as desktop. There is no app to install — just open the page in your browser.

All finance calculators are completely free. No registration, membership or payment is required.