Construction Calculator

Estimate materials for your building projects

Construction Material Calculator

Select a calculator type below:

Concrete Calculator

Length (ft)

Width (ft)

Depth (inches)

Concrete Required:

Bags of concrete (40kg):

Bricks Calculator

Wall Length (ft)

Wall Height (ft)

Brick Size Standard (8x4x2.25 inches) Modular (7.625x3.625x2.25 inches)

Bricks Required:

Mortar needed: bags

Steel Weight Calculator

Length (ft)

Diameter (mm)

Steel Weight:

Paint Calculator

Wall Area (sq ft)

Number of Coats

Paint Required:

Gallons needed:

Tile Calculator

Floor Length (ft)

Floor Width (ft)

Tile Size (inches)

Tiles Required:

Add 10% extra for cuts:

Roofing Calculator

Roof Length (ft)

Roof Width (ft)

Roof Pitch (slope) Flat Low Slope (4/12) Medium Slope (6/12) Steep Slope (8/12)

Roofing Materials:

Shingles needed: bundles

Construction Calculator - Free Online Tool

Our Construction Calculator helps builders, contractors, and DIY enthusiasts estimate materials for various building projects. Whether you're working on concrete foundations, brick walls, steel structures, painting, tiling, or roofing, this tool provides quick and accurate calculations.

How to Use:

1. Select the type of calculation you need (Concrete, Bricks, Steel, etc.)
2. Enter the required dimensions (length, width, height, etc.)
3. Click "Calculate" to get instant results

Why Use Our Construction Calculator?

• ✅ Accurate Estimates - Avoid material wastage
• ✅ Time-Saving - No manual calculations needed
• ✅ Mobile-Friendly - Works on phones, tablets, and computers
• ✅ Free Forever - No hidden costs

Common Construction Calculations:

This tool covers:

• Concrete Calculator - Estimate cement, sand, and aggregate
• Brick Calculator - Calculate bricks and mortar
• Steel Weight Calculator - Find rebar weight
• Paint Calculator - Estimate paint quantity
• Tile Calculator - Determine tiles needed
• Roofing Calculator - Shingle estimation

© Construction Calculator. All rights reserved.

A free tool for builders, contractors, and DIYers.

Modern Percentage Calculator

Quick & Easy Calculations

• Calculator
• Features
• How To
• About

Modern Percentage Calculator

Calculate percentages effortlessly with our sleek, responsive calculator. Perfect for discounts, tips, taxes, and more.

Percentage Calculator

What is

of what number?

What is

% of what number?

Original Value:

Percentage (increase/decrease):

Type: Increase Decrease

Old Value:

New Value:

Result:

Key Features

Responsive Design

Works perfectly on all devices - desktop, tablet, and mobile phones.

Fast Calculations

Get instant results with our optimized calculation engine.

Multiple Modes

Four different calculation types to handle all percentage needs.

How To Use

1

Select Calculation Type

Choose from four different percentage calculation modes using the buttons above the calculator.

2

Enter Your Values

Fill in the required fields with your numbers. The calculator will guide you for each mode.

3

Get Instant Results

Click the calculate button to see your result immediately with a clear explanation.

Modern Percentage Calculator

A free, modern tool to calculate percentages for any purpose. Fast, accurate, and easy to use.

Quick Links

• Calculator
• Features
• How To Use
• Privacy Policy
• Terms of Service

Calculation Types

• Find Percentage
• Find Number
• Increase/Decrease
• Percentage Change

© Modern Percentage Calculator. All rights reserved.

Percentage Calculator

Calculate percentages easily for any purpose

Percentage Calculator

What is

of what number?

What is

% of what number?

Original Value:

Percentage (increase/decrease):

Type: Increase Decrease

Old Value:

New Value:

Result:

How to Calculate Percentages

Our percentage calculator makes it easy to solve all percentage-related problems. Here's how to use it:

1. Find What Percentage X is of Y

Example: What percentage is 25 of 200?

Solution: (25 ÷ 200) × 100 = 12.5%

2. Find X% of a Number

Example: What is 15% of 300?

Solution: (15 ÷ 100) × 300 = 45

3. Increase or Decrease a Number by a Percentage

Example: Increase 80 by 25%

Solution: 80 + (80 × 0.25) = 100

4. Calculate Percentage Change

Example: What is the percentage increase from 50 to 75?

Solution: ((75 - 50) ÷ 50) × 100 = 50%

Common Percentage Calculations

• Discounts: Calculate sale prices and savings
• Tips: Determine 15%, 18%, or 20% tips
• Taxes: Add sales tax to purchases
• Grades: Calculate test scores and final grades
• Finance: Compute interest rates and investment growth

© Percentage Calculator. All rights reserved.

A free online tool to calculate percentages for any purpose.