Calculators › Home & Garden
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Home & Garden
Browse 14 working calculators for home & garden. Every tool shows a live result, its calculation steps, and the sources behind the method.
Agriculture
6 calculators
Grass Seed CalculatorAdjusts a target seeding rate for seed-lot purity and germination, and estimates stand population from a sampled row count.Frost Date CalculatorTurns your local average last spring frost and first autumn frost into a planting calendar: the length of the frost-free growing season, when to sow indoors (counted back from the last frost), when it is safe to transplant, and the last date to sow a crop for a autumn harvest (counted back from the first frost as days to maturity plus a fall factor for shortening days). The frost dates themselves are station-specific climate data and are taken as inputs.Agroforestry Spacing CalculatorWorks out how many plants fit an area at a given spacing, and the seeding rate and in-row spacing needed to reach a target established population.Cooling Degree Day CalculatorAccumulates growing, heating or cooling degree days from daily temperatures against a base temperature.Growing Degree Day CalculatorAccumulates growing, heating or cooling degree days from daily temperatures against a base temperature.Heating Degree Day CalculatorAccumulates growing, heating or cooling degree days from daily temperatures against a base temperature.
Environment
2 calculators
Carbon Footprint CalculatorEstimates an annual greenhouse gas footprint from household electricity, heating fuel, vehicle fuel and flights, using published emission factors.Carbon Miles CalculatorComputes the greenhouse gas emissions of a journey by air, road, rail or sea, per passenger or for freight per tonne-kilometre.
Household
6 calculators
Labels CalculatorBuilds a bill of materials for a craft or hobby project: quantities per finished piece scaled to a batch, with a waste allowance, unit costs, purchase pack sizes and total cost.ABV CalculatorAlcohol by volume of beer, cider or mead from original and final gravity by the standard (OG - FG) x 131.25 formula, with the Hall 1995 alternate, the Balling/Plato cross-check, attenuation and calories.Rent Proration CalculatorWorks out rent for a partial month by each accepted method — actual days in the month, a fixed 30-day month, and an annual day rate — and shows how far apart they are, because the lease decides which applies.Crochet Yarn CalculatorTurns a gauge swatch into stitch and row counts for any finished size, and estimates the yarn needed in yards, metres, grams and skeins.Crochet Sphere CalculatorTurns a gauge swatch into stitch and row counts for any finished size, and estimates the yarn needed in yards, metres, grams and skeins.Crochet Circle CalculatorTurns a gauge swatch into stitch and row counts for any finished size, and estimates the yarn needed in yards, metres, grams and skeins.