Crochet Circle Increase Pattern Generator – Online Formula
Generate a stitch‑by‑stitch increase pattern for any number of rounds. Ensure your amigurumi or mandala lies perfectly flat.
UD5 Toolkit
Create custom printable math drills for kids – addition, subtraction, multiplication, division & mixed operations. Perfect for teachers and parents.
Generate a stitch‑by‑stitch increase pattern for any number of rounds. Ensure your amigurumi or mandala lies perfectly flat.
Select mortar type (N, S, M) and area to calculate materials needed. Bricklaying helper.
Enter length or period to find the other. Visual swinging animation. Quick physics reference.
Compute simple interest and final amount given principal, annual rate, and duration. Also reverse-calculates rate or time. Local only.
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.
Adjust material types (leaves, grass) to achieve the ideal 30:1 C:N ratio. Improve compost bin performance. Local only.
Perform common percentage calculations: find percent of a number, percentage increase/decrease, and more. Simple, fast, and always available for free.
Quickly find the final price after a percentage discount. Also works in reverse to find the original price. Handy for budget shoppers.
Estimate daily hay and grain needed for a horse based on weight and workload. Follows 2% body weight rule. Educational reference.
Project how your savings and investments grow over time with compound interest. Interactive chart and detailed table. Free and anonymous.
Calculate monthly EMIs for any loan type and see the detailed amortization schedule. Compare different interest rates and tenures with instant results.
Compare stick models by length, diameter, and taper. Find the perfect balance for your playing style.
Mix your own feed by entering grain percentages and see the resulting crude protein. Formulate a balanced diet for your flock.
Create your own oral rehydration solution by mixing salt, potassium, and sugar to WHO formula. Convert to teaspoon amounts.
Select rice type and number of cups to get exact water measurement. Perfect fluffy rice every time.
Calculate the tube length for each note of a pan flute given inner diameter. Build your own instrument.
Estimate required CFM for your dust collector given machine port size and length. Woodshop aid.
Based on move size, hours, and crew, estimate appropriate tip per mover. Quick reference.
Find safe mixing ratios for the classic elephant toothpaste demonstration. Volume adjustments for different container sizes.
Enter cabinet width and find optimal placement for knobs or pulls. Visual layout with grid. Achieve professional look.
Enter number of emitters and their GPH to calculate total water delivered and optimal run time for your plants.
Choose your cup size and sweetness level, and get exact proportions for tea, milk, syrup, and tapioca pearls. Perfect homemade boba every time.
See how making extra payments reduces tenure and saves interest. Visual graph comparing original vs prepaid amortization. Purely local financial tool.
Calculate water and soda ash needed to pre‑soak fabric for tie‑dye. Achieve vibrant, long‑lasting colors.
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.
Enter product size and price for two items to see true cost per unit (oz, lb, ml, etc.). Always find the better deal. Quick local math.
Match your fabric design size to the correct embroidery hoop diameter. Visual guide showing how much fabric margin is left.
Estimate the total price after adding US state sales tax. Select state, enter amount, and see breakdown. Simple and quick, perfect for shoppers.
Compare time and equipment cost to hiring a plow service. Fun winter economics.
Calculate airflow in cubic feet per minute given velocity and duct diameter. Simple HVAC reference. Local only.