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All Tools

Every calculator and converter on Calcoryn in one place, organized by category.

Calculators

401(k) Calculator

Project your 401(k) balance at retirement from your salary, contribution rate, employer match, and expected return — with your own and your employer's contributions shown separately.

Age Calculator

Calculate exact age in years, months and days from a date of birth.

Auto Lease Calculator

Estimate your monthly car lease payment from negotiated price, residual value, money factor (or APR), term and tax.

Auto Loan Calculator

Estimate your monthly car payment, amount financed, total interest and total repayment from vehicle price, down payment, trade-in, APR and term.

Auto Loan Payoff Calculator

Find out how long your car loan will take to pay off at your current payment, and how much an extra payment could save.

Auto Refinance Calculator

Compare your current auto loan against a refinance offer: monthly payment change, lifetime cost difference, and break-even on fees.

Break-Even Calculator

Find the break-even point in units and revenue from fixed costs, selling price and variable cost per unit.

Business Loan Calculator

Estimate the monthly payment, total interest and total repayment on a business loan from its principal, APR and term.

Commission Calculator

Calculate sales commission from a sales amount and commission rate, with an optional base pay.

Compound Interest Calculator

Calculate how a principal grows with compound interest, with an optional recurring contribution and a simple-interest comparison.

Credit Card Payoff Calculator

Find out how long it will take to pay off a credit card balance with a fixed payment, or the payment needed to hit a target payoff date.

Date Calculator

Find the number of days between two dates, or add/subtract days, weeks, months or years from a date.

Debt-to-Income (DTI) Calculator

Calculate your debt-to-income ratio from your gross monthly income and monthly debt payments, including separate front-end and back-end DTI.

Fraction Calculator

Add, subtract, multiply and divide fractions, with results simplified automatically.

Home Equity Loan Calculator

Estimate your home equity, loan-to-value (LTV) and combined LTV, plus the fixed monthly payment on a home equity loan.

Loan Calculator

Estimate the monthly payment, total interest and total repayment on any fixed-rate loan from its principal, APR and term.

Markup Calculator

Find the selling price and profit from a cost and a markup percentage, or the markup percentage between a cost and a price.

Mortgage Calculator

Estimate your monthly mortgage payment, total interest and total repayment from home price, down payment, rate and term.

Mortgage Refinance Calculator

Compare your current mortgage against a refinance offer: monthly payment change, lifetime cost difference, and break-even on closing costs.

Rent vs. Buy Calculator

Compare the projected net worth of buying a home against renting and investing the difference, over a horizon you choose.

Retirement Calculator

Project your retirement nest egg from your current savings, contributions, expected return and inflation — in both future and today's dollars.

ROI Calculator

Calculate return on investment and net gain/loss from an initial investment and either a final value or a gain amount.

Sales Tax Calculator

Add sales tax to a price, or work backward from a tax-included total to find the pre-tax subtotal.

Savings Goal Calculator

Find the monthly contribution needed to hit a savings goal, or project your future balance from current savings and a monthly contribution.

Student Loan Calculator

Estimate your student loan monthly payment, total interest and repayment, and how much an extra payment could save.

VAT Calculator

Add VAT to a net amount, or work backward from a VAT-inclusive price to find the net amount and VAT.

Converters

Area Converter

Convert instantly between metric and imperial area units, including hectares and acres.

Construction & Measurement

Asphalt Calculator

Estimate asphalt volume from area and compacted thickness, with optional tonnage from the density of your actual asphalt mix.

Board Foot Calculator

Calculate board feet from lumber thickness, width, length and quantity using the dimensions you enter.

Brick Calculator

Estimate how many bricks you need for a rectangular wall using brick face dimensions, mortar-joint thickness and waste allowance.

Concrete Block Calculator

Estimate concrete blocks for a wall from wall size, openings, block face dimensions, mortar joints and waste allowance.

Drywall Calculator

Estimate drywall sheet count for room walls and an optional ceiling, with openings and waste allowance.

Fence Calculator

Estimate fence panels or posts from your fence run length and the actual panel width or post spacing you plan to use.

Flooring Calculator

Estimate flooring packages from room dimensions, package coverage and an extra-material allowance.

Gravel Calculator

Calculate gravel volume in cubic yards, cubic feet and cubic meters, with an optional weight estimate from your material density.

Mulch Calculator

Calculate how much mulch you need in cubic yards, cubic feet and cubic meters, with an optional bag-count estimate.

Paint Calculator

Estimate how much paint you need from room dimensions or a direct paintable area, with adjustable coverage and coats.

Paver Calculator

Estimate how many pavers you need from paved area, paver dimensions, optional joint gap and extra-material allowance.

Rebar Calculator

Estimate rebar counts, total straight length and nominal steel weight for a rectangular reinforcement grid.

Roof Pitch Calculator

Convert between roof pitch (x:12), angle in degrees, slope percentage and rafter-length multiplier.

Tile Calculator

Calculate how many tiles you need from surface dimensions, tile size and waste allowance, with an optional box estimate.