Tools & Calculators

79 free tools for the garden, the barn, and the home. The weather and planting tools tune to your nearest official station; the rest run on the numbers you enter. All work in your browser, with no account and nothing to install. Set your place once and it carries across the tools that use it.

79 tools 12 categories US edition

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79 tools

Department I

Vegetable Garden

Beds, sowing windows, crop rhythm, and the plants that share the space.

10 tools

Garden Planner Lay out a square-foot bed, or auto-arrange it. Open Wood-Core Bed Calculator Wood, brush, compost, and soil for a hugelkultur bed. Open Raised Bed Soil Mix Calculator Compost, peat, vermiculite, or topsoil by the bag and yard. Open Garden Size Calculator How many plants of each crop to feed your household. Open Succession Planting Timed repeat sowings for a continuous harvest. Open Crop Rotation What to plant where next year, by family. Open Frost & Planting Calendar When to start, set out, and harvest each vegetable. Open Container & Balcony Planner Pot depth and size per crop for a balcony. Open Pollinator Garden A bloom calendar from native plants. Open Plant ID From a Photo Name a garden plant from a photo, in your browser. Open

Department II

Livestock & Poultry

Dates, feed, water, space, gain, and freezer math for small stock.

10 tools

Chicken Coop & Run Calculator Coop and run space, nest boxes, roost, feed, and water. Open Livestock Gestation Calculator Due dates and watch windows for cattle, sheep, goats, pigs, rabbits, and horses. Open Livestock Weight Calculator Estimate live weight from heart girth and body length. Open Feed Ration Calculator Two-ingredient Pearson square feed balancing from user-entered feed values. Open Average Daily Gain Calculator ADG, required gain, projected weight, and days to target. Open Freezer Meat Yield Calculator Live, hanging, chilled, packaged, share weight, and freezer space. Open Egg Hatch Date Calculator Hatch, lockdown, candling, and stop-turning dates for poultry eggs. Open Egg Cost Calculator Feed cost, monthly outlay, and cost per dozen for a laying flock. Open Brooder Temperature Calculator Weekly chick brooder temperatures from hatch day and room temperature. Open Livestock Water Calculator Daily water needs for mixed livestock groups, with hot-weather reserves. Open

Department III

Pasture, Hay & Fencing

Carrying capacity, winter feed, bale weight, and perimeter planning.

5 tools

Stocking Rate Calculator Pasture carrying capacity from forage dry matter, utilization, AUE, and months. Open Hay Bale Weight Calculator Round and square bale weight from dimensions and density. Open Winter Hay Supply Calculator Hay tons and bales to buy from animals, days, dry matter, and waste. Open Fence Material Calculator Fence perimeter, posts, wire, gates, and editable material cost. Open Electric Fence Energizer Calculator Output joules, voltage target, and grounding from energized wire length. Open

Department IV

Soil, Compost & Inputs

Turn bed volume and soil-test numbers into amendments you can buy.

4 tools

Fertilizer Rate Calculator Turn a soil-test nutrient rate into product, bags, cost, and co-applied nutrients. Open Lime Calculator Agricultural lime from pH, buffer pH, neutralizing index, depth, and area. Open Compost Calculator Compost carbon-to-nitrogen ratio from wet weights and ingredient presets. Open Mulch & Soil Calculator Cubic yards and bags of mulch, soil, gravel. Open

Department V

Bees, Maple & Sap

Apiary and sugarbush calculators for syrup, mites, and spring sap.

3 tools

Maple Syrup Calculator Maple tap count, sap-to-syrup ratio, boil-off, and syrup yield. Open Bee Syrup Calculator Mix 1:1 or 2:1 bee syrup from sugar weight or target volume. Open Varroa Mite Calculator Alcohol-wash or sticky-board mite counts turned into a threshold status. Open

Department VI

Frost, Weather & Sky

Frost, heat, daylight, sky events, tides, and tonight's outdoor windows.

13 tools

Growing Degree Days Calculator GDD and crop heat units from daily high and low temperatures. Open Frost Countdown Days until your next frost. Open Sun & Shade Planner Sun path, daylight, and golden hour. Open Growing Season Length How long your season runs, and its rank. Open Winter & Summer Index Scores for how hard winter and summer run. Open The Frost Atlas Frost dates and seasons mapped. Open Weather & Work Windows Forecast with the right days for outdoor jobs. Open Moon Phase, Rise & Set Today's phase, illumination, moonrise, and moonset. Open Sunrise, Sunset & Daylight Sunrise, sunset, day length, golden and blue hour. Open Solunar Fishing & Hunting Times Major and minor feeding windows, with a day rating. Open Aurora Forecast A plain northern-lights forecast for your latitude. Open Stargazing Forecast Tonight's darkness window, cloud cover, and moon glare. Open Tide Times Near You The nearest station and the next high and low water. Open

Department VII

Lawn & Yard

Turf, weeds, trees, pools, and the open ground around the house.

5 tools

Lawn Calculator Grass seed and fertilizer amounts and timing. Open Crabgrass Preventer Timing When to put pre-emergent down for your place. Open Tree ID From a Photo Name a tree from a leaf, bark, or cone photo. Open Weed ID From a Photo Tell a weed from a wanted plant before you pull. Open Pool Calendar When to open and close the pool. Open

Department VIII

Home & Building

Paint, concrete, heating, fuel, solar, winter salt, and other measured jobs.

16 tools

Paint & Stain Calculator Gallons, the temperature window, the season. Open Ice Melt & Salt Calculator The right amount of de-icer for the cold. Open Firewood & Cord Calculator Measure a stack into cords; size a season. Open Concrete & Sealer Calculator Cubic yards, bags, and the pour window. Open Furnace & AC Sizing A rough heating and cooling size for your home. Open Solar Panel Payback Yearly output, savings, and break-even. Open Off-Grid Solar & Battery Array watts and battery storage from your daily use. Open Wood & Pellet Stove Sizing A rough stove output in BTU for your space. Open Canning Altitude Adjuster Correct a tested recipe for your elevation. Open Home Maintenance Cost Calculator Annual upkeep budget, monthly set-aside, and repair categories. Open Pool Chemical Calculator Chlorine, pH, alkalinity, and stabilizer doses from test readings. Open Flooring and Tile Calculator Area, waste, boxes, and underlayment rolls before you buy. Open Deck Material Calculator Deck boards, joists, screws, and stain from deck size. Open Radon Test Calculator Long-term test window, retest reminder, and EPA 4.0 pCi/L action-level note. Open Heat Pump Sizing Calculator Cold-climate heat pump planning load, tons, and capacity range. Open Solar PV Sizing Calculator Array kW, annual production, bill offset, and simple payback. Open

Department IX

Water

Rainfall, irrigation, drip lines, captured roof water, and pond volume.

4 tools

Irrigation Calculator Irrigation depth, gallons, and runtime from target inches or ET demand. Open Drip Irrigation How long and how often to run the line. Open Rain Barrel & Water Capture Gallons a roof catches, and when to drain. Open Backyard Pond Calculator Volume in gallons, liner size, and pump flow. Open

Department X

Your Town

Place-by-place rules and local figures, kept out of the guesswork.

1 tools

Solar Savings by State What rooftop solar generates and saves where you live. Open

Department XI

Moving & Climate

Climate comparisons, moving checklists, and seasonal changes by address.

3 tools

Climate Twin Finder The town whose weather matches yours. Open Relocation Planner What changes when you change address. Open Moving Climate Match Two places side by side. Open

Department XII

Almanac & Pastimes

Daily habits, year wheels, knots, and small tools to keep close.

5 tools

Embed a Frost & Planting Card Put your town's frost and planting dates on your own website. Open Knots, by the Job The right knot for the task, tied step by step. Open Your Home's Year The whole year on one wheel. Open Your Year, In Order The whole year as a followable plan, in order. Open The Daily Seed A free daily five-letter word puzzle. Open

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