- Construction Calculator
- Automotive Calculator
- Networking Calculator
- Technology Calculator
- Cloud Services Calculator
-
Square Footage CalculatorCalculate square footage from length and width in feet. Get instant area in sq ft, square yards, and square meters for any room or space.
-
Roof Shingles CalculatorCalculate how many shingle bundles and roofing squares you need. Enter roof dimensions and waste % to estimate materials for your roofing project.
-
Septic Tank Volume CalculatorCalculate septic tank capacity in US gallons from length, width and liquid depth in feet. Free rectangular tank volume calculator with liters too.
-
Deck Board CalculatorFree deck board calculator: enter deck size, board width, length and gap to find how many decking boards and screws you need, with a waste allowance.
-
Pea Gravel CalculatorCalculate how much pea gravel you need in tons and cubic yards. Enter length, width, depth and density to estimate material for your project.
-
Stair Stringer Length CalculatorCalculate the minimum stair stringer length from total rise and run using the Pythagorean theorem. Get stringer length, total rise, total run, and stair angle.
-
Countertop Square Footage CalculatorCalculate countertop square footage by adding up each section's length × width. Includes waste overage, square meters, and total square inches.
-
Price per Acre CalculatorCalculate the price per acre of land instantly. Enter the total price and number of acres to find the cost per acre for any property.
-
Price Per Square Foot CalculatorCalculate price per square foot instantly. Enter total price and area in square feet to compare real estate, rentals, flooring, and property costs.
-
Price per Square Meter CalculatorCalculate price per square meter instantly. Enter total price and area in m² to get the unit rate for property, flooring, land or rent comparisons.
-
Pipe Volume CalculatorCalculate pipe volume easily with versatile input options. Enter diameter and length in inches, feet, cm, or meters. Get results in cubic inches, feet, cm, m, liters, or gallons for precise measurements.
-
Metal Roof Cost CalculatorEnter roof area in sq ft along with material and labor cost per sq ft to estimate your total metal roof cost instantly.
-
Labor Cost CalculatorCalculate total labor cost from hourly rate, hours worked, and number of workers. Free labor cost calculator for projects, payroll, and job estimates.
-
Fence Cost CalculatorEstimate the total cost of installing a fence by entering its length and cost per linear foot. Fast, free fencing price calculator for any project.
-
Paint Quantity CalculatorCalculate how many gallons of paint you need for your walls based on area, number of coats, and coverage per gallon. Fast, free paint estimator.
-
Wallpaper Rolls CalculatorCalculate how many wallpaper rolls you need for a room from perimeter, wall height, roll size and pattern repeat. Free, accurate, with rounding for waste.
-
Wallpaper Rolls for a Rectangular Wall CalculatorCalculate how many wallpaper rolls you need for a rectangular wall. Enter wall and roll dimensions to get the number of rolls, rounded up.
-
Rectangular Plate Weight CalculatorCalculate the weight of a rectangular metal plate or sheet from its length, width, thickness, and material density. Get kg, grams, and pounds instantly.
-
R-Value & U-Value Insulation CalculatorCalculate the R-value (thermal resistance) and U-value of insulation from material thickness and thermal conductivity. Add extra layers for total R.
-
Construction Loan CalculatorEstimate interest paid during construction on a draw-based loan. Enter loan amount, rate, and term to see total interest-only cost over the build.
-
Yards of Concrete for a Slab CalculatorCalculate how many cubic yards of concrete you need for a slab from length, width, and thickness, plus an optional waste allowance.
-
Duct Velocity CalculatorCalculate air velocity (fpm) in round or rectangular HVAC ducts from CFM and duct size. Free duct velocity calculator with area and m/s output.
-
CFM Airflow CalculatorCalculate the CFM airflow needed to ventilate a room from its dimensions and air changes per hour (ACH). Free room ventilation sizing tool.
-
HVAC Tonnage CalculatorEstimate the AC tonnage you need from room size and climate. Enter square feet and BTU factor to get tons and total cooling load (BTU/hr).
