Compost Ratio Calculator β Online Brown/Green Balance Tool
Adjust material types (leaves, grass) to achieve the ideal 30:1 C:N ratio. Improve compost bin performance. Local only.
UD5 Toolkit
Real-time small ball scoring for New England candlepin bowling β 10 rounds, 3 balls per frame
| Round | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|
| Balls | ||||||||||
| Score |
Adjust material types (leaves, grass) to achieve the ideal 30:1 C:N ratio. Improve compost bin performance. Local only.
Select rice type and number of cups to get exact water measurement. Perfect fluffy rice every time.
Calculate board feet for dimensional lumber and generate a cut list with waste factor. Quick carpentry tool.
Check if your A/B test results are statistically significant using chi-squared test. Enter visitors & conversions for control/variant. Results in plain English.
Log pool depth, flame height, and soot for each wick series. Quickly identify the best wick for your wax and vessel.
Select drip speed or running toilet and see gallons wasted per day and annual cost. Fix leaks!
Enter your car's make and model to find the minimum and maximum rotor thickness specs. Static lookup table. Local reference.
Convert between common cooking units: cups, tbsp, tsp, ml, grams (for water/flour/sugar), ounces. Quick reference for international recipes.
Enter recent scores, course rating, and slope to estimate a golf handicap index. Simple formula for unofficial tracking. Local only.
Convert between common cooking units: cups β grams, teaspoons β ml, Fahrenheit β Celsius. Essential baking tool.
Calculate salt to warm water ratio for effective gargle. Also ginger and honey tea prep. Simple first aid.
Type a mathematical expression like 'sqrt(16)+sin(pi/2)' and get the result instantly. Supports popular functions. Local.
Two players spin wheels to accumulate points. First to target wins. Customizable segments.
Visual chart and questionnaire to estimate pet obesity risk. Combines weight, breed, and palpation guide.
Enter pond volume and product concentration to determine safe ml or teaspoon of algaecide.
Calculate liquid or tablet dosage for dogs/cats based on weight and prescribed mg/kg. Check your vet's math. Educational, always consult vet.
Calculate how much fabric you need for a quilt based on block size, number, and sashing. Supports metric and imperial. No upload, local.
Estimate the fuel cost for a trip based on distance, vehicle mileage, and fuel price. Supports multiple units (miles, km, liters, gallons).
Convert dog years to human years using the updated 2019 formula that accounts for breed size (small, medium, large). More accurate than 7:1.
Create your own oral rehydration solution by mixing salt, potassium, and sugar to WHO formula. Convert to teaspoon amounts.
Create the perfect brine for refrigerator pickles. Adjust ratios by weight. Quick and safe recipe tool.
Find the right heater wattage for your fish tank based on volume and desired temperature rise. Simple rule-of-thumb calculator. Local only.
Estimate total fuel cost for a road trip. Enter distance, vehicle MPG or L/100km, and fuel price. See cost per person for sharing. Simple & local.
Plan your travel budget by entering flights, accommodation, meals, activities, transport. See cost breakdown and per-person share. Fully local.
Convert cat age to human years using updated veterinary guidelines (not simple 1:7). Provides life stage context. Local only.
Convert speed units such as miles per hour, kilometers per hour, knots, and meters per second. Accurate and quick, works offline in your browser.
Search for the NaOH and KOH sap values of various oils. Reference for cold process soap makers.
Log initial wheel diameter and after some cuts to see wear rate and estimate remaining life. Made for metalworking and hobbyists.
Convert rabbit age to human years considering their rapid early maturation. Fun tool for house rabbit owners. Local only.
Compare your worn sole pattern with reference images to determine pronation type and get shoe recommendations.