UD5 Toolkit
Tiny House Cost Estimator – Online DIY Build Budget Tool
Breakdown of expected costs (materials, appliances, etc.) for a tiny house. Adjust percentages or enter custom. Local calculation.
Home Improvement & DIY
87+ toolsTV Viewing Distance Calculator - Online Size vs Resolution Guide
Find the optimal TV size for your room or the best viewing distance based on screen size and resolution (1080p, 4K, 8K). Simple THX/SMPTE reference.
Roof Snow Load Estimator – Online Ground Snow & Pitch Factor
Enter ground snow load and roof pitch to estimate the effective snow load on a sloped roof. Quick structural check for snowy regions.
Speaker Placement Calculator - Online Home Theater Stereo Angle
Calculate ideal stereo speaker placement (toe-in, distance from wall) for best soundstage. Visual diagram. For audiophiles. Local tool.
Water Leak Cost Calculator – Online Drip to Gallon Waste
Select drip speed or running toilet and see gallons wasted per day and annual cost. Fix leaks!
Epoxy Flooring Calculator – Online Sq Ft & Kit Quantity
Enter area to calculate how many epoxy floor kits you need. Consider priming coat.
Concrete Mix Calculator - Online Cement Sand Gravel Ratio Tool
Calculate required bags of cement, sand, and gravel for a given concrete volume using standard mix ratios (1:2:4, etc.). Supports metric and imperial.
Extension Cord Gauge Selector – Online Amps, Length & Voltage Drop
Enter appliance amps and cord length to find the minimum wire gauge needed to prevent overheating and voltage drop. Essential for outdoor power tools.
Media Shelf Capacity Calculator - Online Books DVDs Vinyl Storage
Calculate how many books, DVDs, or vinyl records fit on a shelf given its length and depth. Useful for home library planning. Local only.
Concrete Strength Gain Estimator – Online Age & Temperature Factor
Based on curing temperature and age, estimate the approximate percentage of 28‑day strength reached. Quick check for form removal.
Paint Thinner Mix Calculator – Online Viscosity Ratio
Calculate how much thinner to add to achieve the right viscosity for spray guns. Common ratios.
Screw & Drill Bit Size Chart – Online Metric Imperial
Look up pilot hole and clearance hole sizes for wood screws. Conversion between gauge and mm.
Paint Color Visualizer – Online Test Wall Colors on Sample Rooms
Simulate paint colors on a pre-loaded room photo by adjusting hue, saturation. Find your perfect shade before buying. Local canvas.
Composite Deck Gap Calculator – Online Temperature‑Dependent Spacing
Input the installation temperature and board length to find the correct end‑to‑end gap for composite decking. Prevent buckling.
Soft Wash Mix Calculator – Online Bleach & Water Ratio
Mix sodium hypochlorite with water to get the correct % concentration for soft washing. Safety note.
Bolt Torque to Tension Estimator – Online Simple Calculator
Enter bolt diameter and applied torque to estimate clamping force. Use standard friction factors.
Weather Stripping Selector – Online Gap Size to Material Guide
Match gap size around doors/windows to the correct type of weather stripping (foam, V-strip, door sweep). Save energy.
Door Handing Identifier – Online Determine Left or Right Hand
Interactive visual guide to figure out if a door is left-handed or right-handed. Click through steps. Avoid ordering the wrong door.
Pop Rivet Size Selector – Online Sheet Thickness Guide
Enter material thickness and get the recommended pop rivet diameter and grip range.
Window Solar Heat Gain Calculator - Online Energy Efficiency Tool
Estimate solar heat gain through windows given SHGC and orientation. Understand cooling loads. Simple educational physics tool. Local.
Plank Coverage Calculator - Online Deck Flooring & Paneling Tool
Calculate how many planks you need to cover an area given plank dimensions and gap. Quick carpentry estimator. Local only.
Lumber Calculator – Online Board Feet & Material Lists
Calculate board feet for dimensional lumber and generate a cut list with waste factor. Quick carpentry tool.
Projector Throw Distance Calculator - Online Screen Size Estimator
Calculate projector throw distance or screen image size based on throw ratio. Visualize setup. Essential for home theater planning. Local.
Spray Paint Distance & Coverage Calculator – Online Even Coat Tool
Enter nozzle type and surface area to get optimal spray distance, sweep speed, and estimated cans needed. Prevent runs and drips.
Curtain Rod & Panel Width Calculator – Online Window Dressing
Measure window width and get rod length and number of curtain panels for proper fullness.
Leftover Paint Coverage Calculator – Online Touch‑Up Planning
Enter the amount of leftover paint and see how many square feet it still covers. Plan touch-ups.
Tile Coverage Calculator - Online Floor & Wall Quantity Estimator
Calculate number of tiles needed for a floor or wall, including waste percentage. Supports different tile sizes. No upload, instant results.
Opened Paint Freshness Checker – Online Smell & Consistency Guide
Enter the approximate age of opened paint and answer visual/olfactory questions to see if it's still usable. Reduce waste.
Hole Saw Speed & Feed Calculator – Online Diameter & Material
Enter hole saw diameter and material to find the recommended RPM and feed pressure. Prevent burning and kickback.
Cutoff Wheel Life Logger – Online Tracks Cuts & Diameter
Log initial wheel diameter and after some cuts to see wear rate and estimate remaining life. Made for metalworking and hobbyists.
Staircase Riser & Tread Calculator - Online Comfort Rule Check
Compute riser height and tread depth given total rise and run. Applies comfort formula (2R+T=63cm). Ideal for deck or interior stair design.
Solar Panel Tilt Angle Calculator - Online Optimal Year-Round
Find the best tilt angle for solar panels based on your latitude and season (summer, winter, average). Simple trigonometric estimation. No location data sent.
Spray Foam Insulation Calculator – Online Board Feet
Estimate board feet of spray foam needed for a cavity. Compare closed‑cell and open‑cell.
Wine Label Removal Guide – Online Method for Glass & Scrapbook
Choose label type and get the best technique (baking soda, steam, milk) to remove it intact.
Outlet Spacer Guide – Online Need for Recessed Box?
Interactive check: if your tile backsplash or paneling adds thickness, determine if you need box extenders.
Concrete Volume Calculator – Online Slab, Footing, Column
Calculate cubic yards or meters for various shapes (rectangular slab, circular column, trapezoidal footing). Local math tool.
Paint Coverage Estimator - Online Wall Area & Cans Needed
Input room dimensions and number of coats to estimate how many gallons/litres of paint you need. Excludes doors/windows optionally. Local calculator.
Pocket Hole Screw Selector – Online Material Thickness & Type
Select wood thickness and type (soft/hardwood) to get the recommended pocket hole screw length and jig setting. Professional joinery.
Keyhole Slot Hanger Calculator – Online Picture Frame Positioning
Enter frame dimensions to perfectly place keyhole slots so the picture hangs level. Includes printable mounting template.
Garden Plant Spacing Calculator - Online Grid & Row Layout
Calculate how many vegetable plants fit in a given area using square foot gardening or row spacing. Visual plant grid. Plan your spring garden.
Seasonal Home Maintenance Checklist – Online Fall/Spring Tasks
Select month and get a to‑do list (clean gutters, check weatherstripping). Local storage, printable.
Sun Path Diagram – Online Any Latitude for Architects
Select a latitude to see a 2D sun path chart for solstices and equinoxes. Passive design tool.
Picture Hanging Height Calculator – Online Eye‑Level Guide
Find the ideal height to hang art based on wall and furniture dimensions. Follow gallery standard 57‑inch center rule.
Window Screen Spline Size Guide – Online Measure & Repair
Identify the correct spline diameter needed to replace a window screen. Visual comparison and sizing tool.
Moving Tip Calculator – Online How Much to Tip Movers
Based on move size, hours, and crew, estimate appropriate tip per mover. Quick reference.
Airflow CFM Calculator - Online HVAC Duct Sizing Tool
Calculate airflow in cubic feet per minute given velocity and duct diameter. Simple HVAC reference. Local only.
Sheet Metal Bend Allowance Calculator – Online K-Factor Tool
Calculate developed length for a bend. Enter thickness, angle, inside radius, and K-factor. Essential for metalworking.
Sanding Grit Progression Planner – Online Woodworking Surface Prep
Select starting and ending surface condition to get an optimal sandpaper grit sequence. Never skip a grit again and achieve a flawless wood finish.
Portable Generator Sizing – Online Wattage Estimator
Add appliances with running and starting watts to estimate needed generator capacity. Prevent overload.
Moving Box Calculator - Online Estimate How Many Boxes You Need
Enter number of rooms and get an estimate of how many moving boxes in each size you'll need. Plan your move efficiently. Local tool.
Caulk & Sealant Selector – Online Bathroom, Kitchen, Exterior
Answer where you're sealing (shower, window, baseboard) to get the right type of caulk (100% silicone, acrylic latex, etc.). Avoid moldy seals.
Moving Truck Size Calculator – Online Bedrooms to Cubic Feet
Enter number of bedrooms and large items to estimate the truck size you need. Avoid multiple trips. Simple local estimator.
Mortar Mix Calculator – Online Sand, Cement, Lime
Select mortar type (N, S, M) and area to calculate materials needed. Bricklaying helper.
Wood Joint Selector – Online Choose Based on Load & Look
Answer questions about project type and strength needed to get a joint recommendation. Animations.
Home Repair Cost Estimator – Online Get Rough Job Prices
Select a repair type (leaky faucet, paint room, etc.) and get a typical cost range. Simple general guide, no personal data.
Dust Collection CFM Calculator – Online Shop Hose Size
Estimate required CFM for your dust collector given machine port size and length. Woodshop aid.
Tile Grout Calculator – Online Coverage & Spacer Guide
Calculate grout needed (lbs or kg) based on tile size, grout joint, and area. Also recommend spacer size. Local estimator.
Soil pH Adjuster Calculator - Online Lime & Sulfur Amount
Estimate how much agricultural lime or elemental sulfur to add to change soil pH by a target amount. Based on soil type and current pH. Educational.
Drill Bit Sharpening Angle Guide – Online Material-Specific Angles
Select the material you're drilling into and see the recommended point angle and lip clearance. Sharpen bits correctly.
Gravel & Stone Tonnage Estimator – Online Driveway & Path
Enter length, width, and depth to calculate tons of gravel, crushed stone, or sand needed. Accounts for compaction. Perfect for landscaping.