🔧 Everyday Tools
Handy converters and calculators for cooking, shopping, and daily life.
Aquarium Volume Calculator
Calculate aquarium volume in liters and gallons from dimensions. Get fish stocking recommendations based on the 1 inch per gallon rule and tank shape.
Butter Converter
Convert butter between sticks, cups, tablespoons, grams, ounces, and more — with a visual stick reference
Fuel Cost Calculator
Calculate trip fuel cost from distance, fuel consumption, and gas price — with round-trip, carpool split, and multi-stop support
Fuel Economy Calculator
Calculate your car's fuel consumption — enter distance driven and fuel used, get L/100km or MPG with cost per kilometer/mile
Horsepower to kW Converter
Convert between horsepower (HP/PS/CV) and kilowatts instantly. Supports mechanical HP, metric PS, and electric motor kW. Essential for comparing car specs worldwide.
Knitting Gauge Calculator
Calculate how many stitches to cast on based on your gauge swatch. Enter stitches per 10cm or 4 inches and desired width to get exact stitch count.
MPG to L/100km Converter
Convert fuel economy between MPG (US/UK) and L/100km instantly. Includes km/L and mi/gal reference. The essential tool for comparing cars across regions.
Sugar Substitute Converter
Replace sugar with honey, stevia, erythritol, or 10+ other sweeteners — with adjusted amounts, liquid changes, and baking tips
Triangle Calculator
Enter any 3 values (sides and angles) and get everything — all sides, angles, area, perimeter, heights, and a visual diagram
Yarn Weight Converter
Convert yarn between yards per pound, meters per 100g, and grams per meter — auto-detect yarn weight category and calculate skeins needed for your project