DIY・住宅改善 計算機

Calculate how much paint you need to cover walls, ceilings, or surfaces for any project.

Estimate the amount of grout needed for tile installations based on tile size and spacing.

Calculate concrete volume in cubic yards or meters for slabs, footings, and foundations.

Estimate drywall sheets and materials needed for walls and ceilings in any room size.

Calculate lumber, fasteners, and materials needed for building a wood or composite deck.

Estimate posts, rails, and pickets needed for installing a fence around your property.

Calculate correct stair rise, run, and number of steps for safe and code-compliant stairs.

Calculate door frame rough opening dimensions and materials for standard or custom door sizes.

Estimate total renovation costs for any room including materials, labor, and contingency.

Determine correct pipe diameter for water supply and drain systems based on flow requirements.

Calculate wire gauge, breaker size, and load capacity for residential electrical circuits.

Calculate lumens needed for adequate room lighting based on room size and desired brightness.

Calculate BTU capacity needed for heating and cooling any room or building space size.

Estimate solar panel quantity and system size needed to offset your home electricity usage.

Calculate rainwater collection potential from your roof area based on local rainfall data.

Determine the correct septic tank size for your household based on bedrooms and daily usage.

Calculate the right water heater capacity for your household based on usage patterns and peak demand.

Estimate total bathroom renovation costs including fixtures, tile, labor, and plumbing work.

Calculate kitchen renovation costs for cabinets, countertops, appliances, and installation labor.

Estimate roofing shingles or material squares needed based on roof area, pitch, and style.