Industry-Specific

  • Log Board Foot Calculator
    Estimate board feet of lumber from a log using the Doyle, Scribner, or International 1/4-inch log rules. Enter small-end diameter and length.
  • Patio Brick Calculator
    Calculate how many bricks or pavers you need for a patio. Enter patio dimensions, brick size, and waste percentage to get an accurate brick count.
  • Board Foot Price Calculator
    Calculate the total cost of lumber by board foot. Enter thickness, width, length, quantity, and price per board foot to get total board feet and cost.
  • Rock Weight Calculator
    Estimate the weight of a rock or boulder from its size and rock type. Get results in pounds, US tons, and kilograms for granite, basalt, limestone and more.
  • Hip Roof Shingle Calculator
    Estimate shingle bundles and roofing squares for a hip roof from building length, width, pitch, and waste factor. Fast, accurate material planning.
  • Fence Post Spacing Calculator
    Calculate how many fence posts you need, the number of panels, and the exact even spacing between posts for any fence length.
  • Tile Calculator (Square Meters)
    Free tile calculator in square meters. Enter room and tile sizes plus waste % to find total area and the number of tiles you need to buy.
  • Post and Rail Fence Calculator
    Calculate posts, sections, and rails needed for a post and rail fence. Enter fence length, post spacing, and rails per section for instant materials.
  • Deck Stair Stringer Calculator
    Calculate deck stair stringers: number of risers, actual riser height, total run, stringer cut length and stair angle from your total rise.
  • Sod Cost Calculator
    Estimate the cost of sod for your lawn. Enter area dimensions, price per square foot, waste overage, and optional labor to get a total install estimate.
  • Laminate Flooring Cost Calculator
    Estimate the cost of laminate flooring for any room. Enter dimensions, price per square foot, waste allowance and labor to get a full material and labor estimate.
  • Spray Paint Coverage Calculator
    Calculate how many spray paint cans you need for any project. Enter area, coats, can coverage, and waste percentage to get an exact, rounded-up estimate.
  • Tire Size Comparison Calculator
    Compare two tire sizes (width/aspect/rim). Get overall diameter, sidewall height, revolutions per mile, % difference and speedometer error.
  • Stair Tread Calculator
    Calculate the number of stair treads and risers, riser height, tread depth, and total run from your total rise. Free, instant staircase layout tool.
  • Tile Grout Calculator
    Estimate how much tile grout you need in litres and kilograms from tile size, joint width, thickness, area and grout density. Free, accurate and easy.
  • Duct Size Calculator
    Free duct size calculator. Find the required round duct diameter or rectangular dimensions from airflow (CFM) and air velocity (FPM) for HVAC systems.
  • Antifreeze Mixture Calculator
    Calculate the final antifreeze (coolant) concentration percent by volume from your antifreeze and water amounts. Free, instant mixture ratio tool.
  • Potential Alcohol Calculator
    Estimate potential alcohol (% ABV) from your wine or must reading. Enter specific gravity or Brix to predict the final ABV if fermented to dry.
  • Pipe Wall Thickness Calculator (Barlow's Formula)
    Calculate minimum pipe wall thickness from internal pressure, outside diameter, and allowable stress using Barlow formula t = PD/(2S). In inches and mm.
  • Wind Load Pressure Calculator
    Calculate dynamic wind pressure with q = ½ρv². Enter wind speed and air density to get pressure in pascals, plus total wind force on an area.
  • Valve Kv Flow Coefficient Calculator
    Calculate the valve flow coefficient Kv (metric) from flow rate, specific gravity and pressure drop. Get equivalent Cv too. Free engineering tool.
  • EV vs Gas Cost per Mile Calculator
    Compare the cost per mile of driving an electric vehicle versus a gas car. Enter kWh/mile, electricity price, gas price, and MPG to see your savings.
  • EV kWh per 100 km Calculator
    Calculate your electric vehicle energy consumption in kWh per 100 km from the energy used and distance driven. Get km/kWh and Wh/km too.
  • Two-Support Beam Reaction Calculator
    Calculate support reactions R1 and R2 for a simply supported beam with a single point load using static equilibrium equations.

Categories