Financial

Financial calculators help you plan, compare, and make sense of money decisions — from loans and mortgages to savings, interest, taxes, and investment returns. Each tool turns a formula into a simple form: enter your numbers and get an instant, clearly explained result.

Browse the most-used financial calculators below, or open the Trending tab to see what's gaining attention this week. Every calculator is free, works on any device, and shows the method behind the answer.

  • Vietnam Household Business Tax Calculator
    Estimate VAT and personal income tax for a Vietnamese household business under Decree 141/2026 and 253/2026 across four revenue bands.
  • Property Depreciation Calculator
    Estimate annual real estate depreciation using the US MACRS straight-line method for residential (27.5 yr) and commercial (39 yr) property.
  • Future Value Calculator with Contributions
    Calculate the future value of an investment with an initial principal plus regular monthly, quarterly or annual contributions and compound interest.
  • Bitcoin Mining Profitability Calculator
    Free Bitcoin mining profitability calculator. Enter hash rate, power, electricity cost and BTC price to estimate daily, monthly and yearly mining profit.
  • Present Value of Annuity Due Calculator
    Calculate the present value of an annuity due — payments made at the beginning of each period. Enter payment, rate per period, and number of periods.
  • Pay Raise Over Time Calculator
    Project how your salary grows over time with compounded annual pay raises. See your final salary, total increase, percent gain, and total earnings.
  • Hourly Pay Raise Calculator
    Calculate your new hourly wage and annual pay after a percentage raise. Enter current pay, raise %, hours and weeks to see your increase.
  • Impermanent Loss Calculator
    Calculate impermanent loss for a 50/50 liquidity pool from a price change ratio. See percentage loss vs HODL and estimated dollar impact.
  • Life Insurance Premium Calculator
    Estimate your annual and monthly life insurance premiums based on coverage, term, age, gender, and smoker status using a base rate per $1,000.
  • Present & Future Value Algebra Calculator
    Solve for present value or future value using FV = PV(1+r)ⁿ. Enter amount, rate per period, and number of periods to get instant results.
  • Solve Compound Interest for Rate or Time
    Solve the compound interest formula for the unknown interest rate or time. Enter principal, future amount and compounding frequency to find r or t.
  • Straight-Line Depreciation Calculator
    Calculate straight-line (linear) depreciation: annual expense, accumulated depreciation, and book value of an asset after any number of years.
  • Effective Annual Rate (APY) Calculator
    Convert a nominal annual interest rate into the effective annual rate (APY) using the compounding formula APY = (1 + r/n)^n − 1.
  • Stock Price Percent Gain/Loss Calculator
    Calculate the percentage gain or loss on a stock from its buy and sell price. Get profit per share and total profit instantly. Free and universal.
  • GST Percentage Calculator
    Free GST calculator to add or remove GST at any percentage. Enter an amount and rate to get the net price, GST amount, and gross total instantly.
  • Sales Tax Backed Out of Total Calculator
    Back out the sales tax from a tax-inclusive total. Enter the gross amount and tax rate to find the net price and the tax included.
  • Percent Markup on Cost Calculator
    Calculate percent markup on cost from your item cost and selling price. Instantly see markup %, profit per unit, and profit margin.
  • Sales Tax Amount Calculator
    Calculate the sales tax amount and total price from any price and tax rate. Enter the pre-tax price and percentage to see tax owed instantly.
  • Margin on Selling Price Calculator
    Calculate gross margin as a percentage of selling price from cost and sale price. Also shows gross profit and markup on cost. Free and instant.
  • Gross Profit Percentage Calculator
    Calculate gross profit percentage (margin) from revenue and cost of goods sold. Instantly see gross profit and margin % with this free calculator.
  • Percent of Salary Calculator
    Calculate what a given percentage of your salary equals. Enter your salary and a percent to instantly find the dollar amount and the remainder.
  • Loan-to-Value (LTV) Percentage Calculator
    Calculate your loan-to-value (LTV) ratio instantly. Enter your loan amount and property value to find the LTV percentage and your home equity.
  • Profit Margin and Markup Calculator
    Calculate profit margin, markup percentage, and gross profit from cost and selling price. Free, instant business pricing calculator for any currency.
  • Percent Needed to Recover After a Loss
    Find the percent gain needed to recover from a percentage loss. Enter your loss % and see the bigger gain required to break even again.

Frequently asked questions

What can I use a financial calculator for?

Financial calculators cover everyday money tasks such as loan and mortgage payments, interest and APR, savings growth, inflation, currency, tax estimates, and investment returns. Pick the tool that matches your question and enter your figures for an instant result.

Are these financial calculators free to use?

Yes. Every calculator in this category is free, needs no sign-up, and works on both desktop and mobile.

How accurate are the results?

Each calculator uses standard financial formulas and is tested against published reference values. Results are estimates for planning and education — for major decisions, confirm the figures with your bank, lender, or a licensed financial professional.

Do you store the numbers I enter?

No. Calculations run in your browser, and your inputs are not logged, saved, or shared.

Which financial calculators are most popular?

The list on this page is ordered by how often each tool is used, so the most popular calculators appear first. Open the Trending tab to see what is rising this week, or Recently added and Last updated for the newest tools.

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