HomeMeasureCalc

HMC / THE PROJECT DESK

Make the next
project add up.

Free home improvement calculators for materials, room finishes, landscaping, and more. Bring your measurements. See the math. Plan what to order.

Try “paint”, “deck”, “mulch”, or a project material.

Browse all tools Read project field notes
PLAN WITH CLARITYNO SIGN-UPFORMULAS SHOWNHow estimates work
60working calculators
10project categories
10practical field notes

One place to work out what your project may need.

START WHERE YOU ARE

What are you figuring out?

Choose a starting point. Each calculator shows its assumptions and how it reached the estimate.

01 / QUICK START

Tile

Tiles, boxes, and grout for floors or walls

02 / QUICK START

Paint

Paint for interior walls and ceilings

03 / QUICK START

Concrete

Concrete volume in cubic yards or metres

04 / QUICK START

Decking

Deck boards, joists, and fasteners

05 / QUICK START

Mulch

Mulch volume for garden beds

06 / QUICK START

Pool Volume

Pool gallons for common shapes

THE FULL INDEX / 60

Find your calculator.

Search by material, room, or project—or browse the whole collection below.

Need a project sequence?
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60 calculators · 10 categories

01

Interior

Plan quantities for rooms, walls, floors, and finishes.

08 TOOLS
InteriorTile CalculatorTiles, boxes, and grout for floors or wallsInteriorPaint CalculatorPaint for interior walls and ceilingsInteriorFlooring CalculatorPlanks and boxes for laminate, vinyl, or hardwoodInteriorDrywall CalculatorSheets, screws, and joint compoundInteriorInsulation CalculatorBatts or blown-in insulation for walls and atticsInteriorWallpaper CalculatorWallpaper rolls with pattern repeatInteriorBaseboard / Trim CalculatorLinear feet and pieces for a room perimeterInteriorCountertop CalculatorCountertop area and edge profiles
02

Outdoor

Estimate exterior materials, roof lines, and structures.

12 TOOLS
OutdoorConcrete CalculatorConcrete volume in cubic yards or metresOutdoorDecking CalculatorDeck boards, joists, and fastenersOutdoorFence CalculatorPosts, panels, and concrete for a fenceOutdoorRoofing CalculatorShingle bundles and squares by roof pitchOutdoorPaver CalculatorPavers, base gravel, and jointing sandOutdoorRetaining Wall CalculatorWall blocks, caps, and drainage gravelOutdoorSiding CalculatorSiding panels and trim for exterior wallsOutdoorGutter CalculatorGutter footage, hangers, and downspoutsOutdoorExterior Paint CalculatorExterior paint by surface and coatsOutdoorDeck & Fence Stain CalculatorStain or sealer for exterior woodOutdoorChain Link Fence CalculatorPosts, mesh rolls, and top railOutdoorDriveway Sealcoating CalculatorSealer gallons for an asphalt driveway
03

Landscaping

Work out soil, seed, mulch, and lawn quantities.

08 TOOLS
LandscapingMulch CalculatorMulch volume for garden bedsLandscapingGravel CalculatorGravel volume and weight for paths or drivewaysLandscapingTopsoil CalculatorTopsoil for filling or levelingLandscapingSod CalculatorSod rolls or pallets for a lawnLandscapingLawn Fertilizer CalculatorFertilizer from lawn area and product N ratingLandscapingGrass Seed CalculatorSeed for a new lawn or overseedingLandscapingCompost CalculatorCompost volume for topdressing or bedsLandscapingRain Barrel CalculatorRoof runoff collected per rainfall event
04

Home Systems

Explore planning estimates for heating, power, and ventilation.

08 TOOLS
Home SystemsBTU / AC Size CalculatorCooling capacity estimate for a roomHome SystemsWater Heater Size CalculatorTank gallons or tankless flow rateHome SystemsWire Gauge CalculatorWire size reference by circuit amperageHome SystemsGenerator Size CalculatorRunning and starting watts for backup powerHome SystemsRecessed Lighting CalculatorCan-light layout and spacing for a roomHome SystemsAttic Ventilation CalculatorAttic vent area and intake/exhaust countsHome SystemsExtension Cord Gauge CalculatorEstimated voltage drop by cord length and loadHome SystemsSolar Panel CalculatorPreliminary panel count from energy use
05

Pool & Outdoor Living

Estimate water volume, seasonal materials, and yard coverage.

05 TOOLS
Pool & Outdoor LivingPool Volume CalculatorPool gallons for common shapesPool & Outdoor LivingPool Chemical Dosage CalculatorEstimate chemical quantity from entered valuesPool & Outdoor LivingHot Tub / Spa Volume CalculatorWater volume for a spa or hot tubPool & Outdoor LivingFirewood CalculatorStacked cord estimate from woodpile dimensionsPool & Outdoor LivingSprinkler CalculatorSprinkler heads for a lawn layout
06

Moving & Storage

Plan box counts, storage space, and truck size.

03 TOOLS
Moving & StorageMoving Boxes CalculatorBox counts and sizes by roomMoving & StorageStorage Unit Size CalculatorSuggested storage unit size from belongingsMoving & StorageMoving Truck Size CalculatorTruck size estimate from home size
07

Decor & Furnishing

Find dimensions and quantities for finishing a room.

05 TOOLS
Decor & FurnishingArea Rug Size CalculatorRug dimensions for a room and furniture layoutDecor & FurnishingCurtain Fabric CalculatorFabric yardage for custom drapesDecor & FurnishingBlinds Size CalculatorInside- or outside-mount blind measurementsDecor & FurnishingCloset Shelving CalculatorShelves, brackets, and closet rod lengthDecor & FurnishingGallery Wall CalculatorFrame grid spacing for a feature wall
08

Kitchen & Bath

Plan cabinet layouts, backsplash tile, and hardware.

04 TOOLS
Kitchen & BathCabinet CalculatorCabinet count from kitchen wall runsKitchen & BathBacksplash CalculatorBacksplash tile, boxes, and groutKitchen & BathTile Grout CalculatorGrout from tile dimensions and joint widthKitchen & BathCabinet Hardware CalculatorKnobs and pulls for doors and drawers
09

Lumber & Framing

Estimate lumber volumes, wall framing, and panel quantities.

04 TOOLS
Lumber & FramingBoard Feet CalculatorLumber volume from board dimensionsLumber & FramingPlywood / OSB Sheathing CalculatorSheets for subfloor, walls, or roof deckLumber & FramingStud CalculatorStud count from wall length and spacingLumber & FramingDeck Joist Hanger CalculatorJoist hanger count from your joist layout
10

Seasonal & Specialty

One-off calculations for winter and special projects.

03 TOOLS
Seasonal & SpecialtyChristmas Lights CalculatorLight strings for a roofline or treeSeasonal & SpecialtyIce Melt / Snow Removal CalculatorProduct quantity from area and label rateSeasonal & SpecialtyPlayground Safety Surfacing CalculatorSurfacing depth and volume by fall height
A CLEARER WAY TO PLAN

Useful estimates.
No mystery math.

Start with measurements, check the assumptions, then use the result as a planning estimate—not a substitute for the product label or project plan.

Read our methods & sources
  1. 01
    Measure your project

    Enter the dimensions and product details the calculator asks for.

  2. 02
    Follow the formula

    Review the units, worked example, rounding, and assumptions shown on the tool page.

  3. 03
    Confirm before ordering

    Check coverage, installation directions, plans, and local requirements for your materials.

MORE THAN ONE NUMBER

Plan the whole project.

All project guides
01 / PROJECT GUIDE3 calculators

Pools & spas

Water volume, chemical planning, and the measurements to have ready.

OPEN GUIDE 02 / PROJECT GUIDE4 calculators

Decks & framing

Connect board quantities, joists, hangers, and footing estimates.

OPEN GUIDE 03 / PROJECT GUIDE3 calculators

Winter home maintenance

Coordinate roof, gutter, and ice-melt planning before the season.

OPEN GUIDE
FROM THE FIELD NOTES

Answers behind the estimate.

Explore all field notes
NOTE 016 MINPools & spas

How Many Gallons Are in a Hot Tub? A Practical Volume Guide

Hot tub capacity depends on its shape, seat wells, and actual fill level. Here is how to estimate volume—and when to trust the manufacturer’s number instead.

READ FIELD NOTE NOTE 027 MINPools & spas

How Much Pool Shock Should You Add? Read the Label First

Pool shock dosage is not one-size-fits-all. Learn which measurements and label details matter before calculating any amount.

READ FIELD NOTE NOTE 037 MINWinter maintenance

How Much Ice Melt Do You Need? Coverage, Rates & Bags

Ice melt coverage depends on the label, temperature, surface, and conditions. Calculate a starting quantity from your chosen product’s stated rate.

READ FIELD NOTE
GOOD TO KNOW

Before you start measuring.

Every project is different. These answers explain what a calculator estimate means—and what it does not.

How the calculators work
Are HomeMeasureCalc calculators free?

Yes. The calculators are free to use without an account. Enter the dimensions or product details requested by the tool to see a planning estimate.

Do calculators send the measurements I enter to a server?

The calculator inputs and calculations run in your browser and are not submitted to HomeMeasureCalc servers by the tools. The site does use Google Analytics; see the privacy policy for details about analytics.

How accurate are material calculator estimates?

They apply the formulas and assumptions shown on each page to the values you enter. Actual quantities can differ because of product coverage, layout, cuts, site conditions, and package sizes. Confirm estimates against product instructions and project plans.

Do these tools include material or labor prices?

Where a calculator offers a cost estimate, it uses the prices you enter. Prices vary by supplier, region, product, and installation scope, so estimates are not quotes.

Where can I find the formula behind an estimate?

Each calculator explains its formula, example, and key limitations. See the methods and sources page for more about how estimates are presented.