Free calculators & tools
Every calculator across Dixon App Studio's sites, grouped by trade and topic.
120 free calculators from Dixon App Studio sites, grouped by topic: roofing, decks, fences, tile, gravel, baking, mortgages, budgets, business and pets. Dixon App Studio publishes simple, useful apps and web tools — calculators, business tools, content sites, and Android apps — with no subscriptions and no clutter. Visit our homepage to learn more, browse the full app lineup, or read practical guides on the blog.
Every product on this site is built and maintained in-house by Dixon App Studio. We focus on speed, clarity, and longevity instead of chasing trends or paywalling features. If you need help with any of our apps, our support page lists contact details and answers to the most common questions.
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Roofing: Gable roof calculator Roofing: Hip roof calculator Roofing: Roof area calculator Roofing: Roof pitch calculator Roofing: Shingle calculator Roofing: Shingle bundle calculator Roofing: Underlayment calculator Roofing: Metal roof calculator Roofing: Rafter length calculator Roofing: Roof truss calculator Roofing: Gutter calculator Roofing: Asphalt shingle roof cost calculator Roofing: Metal roofing cost calculator Decks & porches: Deck cost calculator Decks & porches: Deck board calculator Decks & porches: Deck joist calculator Decks & porches: Deck footing calculator Decks & porches: Deck block calculator Decks & porches: Stair stringer calculator Decks & porches: Deck railing calculator Decks & porches: Deck stain calculator Decks & porches: Composite vs wood deck calculator Decks & porches: Deck joist span chart Fences & gates: Fence linear footage calculator Fences & gates: Fence post calculator Fences & gates: Fence picket calculator Fences & gates: Fence post concrete calculator Fences & gates: Wood fence calculator Fences & gates: Vinyl fence calculator Fences & gates: Chain link fence calculator Fences & gates: Fence gate calculator Fences & gates: Fence cost per foot calculator Tile & flooring: Tile calculator Tile & flooring: Bathroom tile calculator Tile & flooring: Shower tile calculator Tile & flooring: Backsplash calculator Tile & flooring: Grout calculator Tile & flooring: Thinset calculator Tile & flooring: Herringbone tile calculator Tile & flooring: Tile cost calculator Insulation & drywall: Attic insulation calculator Insulation & drywall: R-value calculator Insulation & drywall: Blown-in insulation calculator Insulation & drywall: Spray foam calculator Insulation & drywall: Wall insulation calculator Insulation & drywall: Insulation cost calculator Insulation & drywall: Soundproofing calculator Insulation & drywall: Drywall calculator app (Android) Gravel, stone & landscaping: Gravel calculator Gravel, stone & landscaping: Gravel tons calculator Gravel, stone & landscaping: #57 stone calculator Gravel, stone & landscaping: Pea gravel calculator Gravel, stone & landscaping: Gravel driveway calculator Gravel, stone & landscaping: Crushed stone calculator Gravel, stone & landscaping: Mulch calculator Gravel, stone & landscaping: Topsoil calculator Gravel, stone & landscaping: Concrete calculator Gravel, stone & landscaping: Paver calculator Gravel, stone & landscaping: Sod calculator app (Android) Kitchen & baking conversions: Flour grams to cups Kitchen & baking conversions: How many grams in a cup of flour Kitchen & baking conversions: Sugar grams to cups Kitchen & baking conversions: Brown sugar grams to cups Kitchen & baking conversions: Butter grams to cups Kitchen & baking conversions: Almond flour grams to cups Kitchen & baking conversions: Cups to grams converter Kitchen & baking conversions: Grams to tablespoons Kitchen & baking conversions: Recipe converter Kitchen & baking conversions: Oven temperature converter Kitchen & baking conversions: Baking pan converter Home buying & mortgages: Mortgage calculator Home buying & mortgages: How much house can I afford Home buying & mortgages: Amortization schedule Home buying & mortgages: Rent vs buy calculator Home buying & mortgages: Refinance break-even calculator Home buying & mortgages: PMI removal calculator Home buying & mortgages: Early mortgage payoff calculator Budgets, bills & debt: Credit card payoff calculator Budgets, bills & debt: Debt snowball calculator Budgets, bills & debt: 50/30/20 budget calculator Budgets, bills & debt: Monthly budget calculator Budgets, bills & debt: Prorated rent calculator Budgets, bills & debt: Split bill calculator Budgets, bills & debt: Electricity cost calculator Budgets, bills & debt: Emergency fund calculator Income, savings & side hustles: Compound interest calculator Income, savings & side hustles: FIRE number calculator Income, savings & side hustles: Hourly to salary calculator Income, savings & side hustles: Self-employment tax calculator Income, savings & side hustles: Freelance rate calculator Income, savings & side hustles: Gig driver pay calculator Income, savings & side hustles: Etsy profit calculator Small business: Profit margin calculator Small business: Markup vs margin calculator Small business: Sales tax calculator Small business: Break-even calculator Small business: Card processing fee calculator Small business: Free invoice generator Small business: Estimate generator Small business: Timesheet calculator Units, currency & travel: Length converter Units, currency & travel: Kilograms to pounds Units, currency & travel: Fahrenheit to Celsius Units, currency & travel: Centimeters to inches Units, currency & travel: USD to EUR converter Units, currency & travel: Travel budget calculator Units, currency & travel: Exchange rate markup calculator Images & files: WebP to JPG converter Images & files: HEIC to JPG converter Images & files: PNG to JPG converter Images & files: Compress image to 100 KB Images & files: Image resizer Images & files: Resize image for Instagram Images & files: Favicon generator Pets: Dog food calculator Pets: Puppy weight calculator Pets: Pet age calculator Pets: Cat food calculator Pets: Dog chocolate toxicity calculator Pets: Aquarium volume calculator
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New free tools and buying guides — October 2026 How to export and import Shopify collections with CSV Shopify wholesale pricing: 4 ways to set it up How to limit order quantity in Shopify (min, max and multiples) How to set up quantity breaks (tiered pricing) in Shopify Shopify bulk editor guide: bulk edit products, variants and tags How to bulk edit prices in Shopify (3 ways) Free apps from Dixon App Studio How to play Crazy Eights: rules, scoring and house rules Best free geography quiz games (countries, capitals, flags & maps) Deck cost calculator: estimate boards, joists & total price How many grams in a cup? Complete kitchen conversion chart Roofing calculator: how to estimate shingles, squares & cost Fence cost calculator: estimate posts, panels & materials How to convert WebP to JPG (free, no upload) Currency conversion guide for travelers in 2026 Mileage deduction 2026: IRS rate, rules & how to track How to write a contractor quote (free template) Best free bill tracker apps for Android (2026) Pitching analytics 101: pitch counts, velo & spin Basketball stats explained: PER, TS%, eFG% and more 12 ways to boost monthly income in 2026 (realistic) Best free spreadsheet templates for small business Free business tools every freelancer should bookmark 10 best brain training games to sharpen focus Best free browser games (no download, no signup) Honest pet product reviews: how we test Columbia SC science news roundup Roofing calculator app vs spreadsheet: which is faster? Best free unit converter apps for Android Quote maker vs invoice software: what small contractors actually need How Dixon App Studio ships small, useful apps Why we don't use subscriptions