Drum Shell Fundamental Note Calculator β Online Bearing Edge
Enter drum diameter, depth, and material to find the shell's approximate fundamental note. For tuning reference.
UD5 Toolkit
requestAnimationFrame for smooth, jitter-free display.
Enter drum diameter, depth, and material to find the shell's approximate fundamental note. For tuning reference.
Enter total drive time or playlist length to figure out how many songs you need. Convert time to estimated tracks.
Paste a simple drum tab or select a pattern and hear it played. Learn drum set notation interactively.
Click a root key and chord type (Maj, min, 7th) to see the notes highlighted on a piano keyboard. Learn chords fast.
Full-featured scientific calculator with trigonometric, logarithmic, and exponential functions. Clean interface and keyboard support. No installation required.
Calculate semester or cumulative GPA on a 4.0 scale. Add courses, credit hours, and letter grades. Instant calculation. No data storage.
Generate flowing geometric art by layering sine waves with different frequencies, amplitudes, and colors. Download SVG.
Accurate online stopwatch with lap and split time capabilities. Start, pause, and reset. Ideal for sports and presentations. Runs natively in the browser.
Estimate monthly mortgage payments with amortization schedule. Input loan amount, interest rate, and term. All calculations performed securely on your device.
Build a color palette for charts that works for protanopia, deuteranopia, and grayscale. Export as array.
Use trigonometric functions in CSS to create circular animations and layouts without JavaScript. See the code.
Convert cat age to human years using updated veterinary guidelines (not simple 1:7). Provides life stage context. Local only.
Calculate your weekly, monthly, or annual pay based on hourly wage and hours. Include overtime rates. Accurate and private.
Click through the rock cycle to see how each rock type transforms into another. Animated arrows and descriptions.
Calculate salt to warm water ratio for effective gargle. Also ginger and honey tea prep. Simple first aid.
List assignments with estimated minutes. See total time and break into Pomodoro sessions. Stay motivated.
Select a bone and see typical healing duration in weeks. Educational information only.
Select knife type and see recommended sharpening angle. Visual guide with degree display. Perfect edge every time.
Log your daily mood and view trends on a calendar. Encourages mindfulness. Data stored only in your browser's localStorage for complete privacy.
Practice calculating network ID, broadcast address, and usable IPs from a random IP/CIDR combination. Instant feedback and score tracking. Perfect for CCNA prep.
Enter release height and speed to compute the optimal launch angle for maximum distance. Simple projectile model.
Follow an interactive temperature curve for dark, milk, or white chocolate. Set timers for each phase to achieve perfect temper without a machine.
Simulate an earthquake alarm with a countdown and visual instructions for Drop, Cover, and Hold On.
Countdown timer for applying a heating pad. Includes recommended max session. Prevent burns.
Estimate due date from last menstrual period or conception date. Uses Naegele's rule and shows week-by-week milestones. Local calculator for informational use.
Track which stage of tumbling your rocks are in, record grit amounts, and get reminders for when to advance to the next grit.
Look up pilot hole and clearance hole sizes for wood screws. Conversion between gauge and mm.
Select a date, time zone, and locale to see how it appears in various formats (long, short, etc.). Ensure correct i18n.
Enter your altitude to see corrected temperatures for thread, soft ball, hard crack, etc. Essential for highβaltitude candy.
Find the date of Easter Sunday for any given year. Learn about the computus algorithm. Simple and accurate.