Lumber Calculator โ Online Board Feet & Material Lists
Calculate board feet for dimensional lumber and generate a cut list with waste factor. Quick carpentry tool.
UD5 Toolkit
Track your game frame by frame. Enter pins knocked down per roll and see your total score update instantly.
Calculate board feet for dimensional lumber and generate a cut list with waste factor. Quick carpentry tool.
Estimate make probability of a putt based on distance and skill rating. For disc golf enthusiasts. Fun statistical tool, no data upload.
Determine what score you need on your final exam to achieve your target overall grade. Enter current grade, weight, desired grade. Local only.
Select tuning, scale length, and string gauge to calculate total tension on the neck. Build custom string sets.
Enter your body measurements and get approximate bike frame size, saddle height, and reach. For cyclists. Local.
Enter number of eyelet pairs and lacing style to find the correct shoelace length in inches/cm. Never buy too short.
Enter roof line or tree height and get the length of light strings needed. Estimate power draw.
Calculate output voltage from a two-resistor voltage divider. Enter input voltage and resistances to see Vout. Includes circuit schematic. No data sent.
Convert between currencies using manually updated or default rates. Great for estimation when offline. Local settings.
Check if your A/B test results are statistically significant using chi-squared test. Enter visitors & conversions for control/variant. Results in plain English.
Calculate gear inches, meters of development, and speed ratio for any chainring/cog combination. For cyclists.
Calculate the total resistance of up to 10 resistors in parallel. Enter values and see the combined resistance instantly. Local electronics helper.
Calculate the area of an irregular polygon by entering its vertex coordinates. Uses the shoelace formula. Pure math.
Practice mental arithmetic with customizable operators and digit count. Timed rounds, score tracking. Works offline. Improve your brain speed.
Measure window width and get rod length and number of curtain panels for proper fullness.
Convert annual salary to effective hourly rate considering holidays, vacation, and work hours per week.
Calculate salt and water for a safe vegetable fermentation. Adjust for pepper weight. Visual brine guide.
Divide a total bill among multiple people considering tax and service fees. See exactly who pays what.
Enter two names and get a playful love compatibility percentage. Purely for entertainment! All calculation happens instantly in your browser.
Type a mathematical expression like 'sqrt(16)+sin(pi/2)' and get the result instantly. Supports popular functions. Local.
Build a combination resistor network by adding series/parallel groups and get total resistance. Visual circuit.
Compute probability for simple events, as well as permutations and combinations (nPr, nCr). Useful for statistics and game theory. Browser-based math.
Random shapes appear; compute the area mentally. Multiple choice. For middle schoolers.
Estimate solar heat gain through windows given SHGC and orientation. Understand cooling loads. Simple educational physics tool. Local.
Solve random arithmetic problems under a time limit. Track your score and improve mental calculation. No data collected.
Try to draw a perfect circle freehand. Score based on roundness. Fun and addictive. No data sent.
Draw perfect ellipses by dragging focal points and a point on the curve. See the equation update dynamically. Educational.
Calculate how much resin part A and part B to measure for a given total volume. Common ratios (2:1, 1:1). Avoid sticky failures. Local.
Drag pie slices to represent fractions and see them added together. Great for visual learners.
Convert a numeric amount into English words, perfect for writing checks or legal documents. Supports USD/GBP styles.