UTILS

Free online tools to generate, calculate,
convert, format, encode, and play.

Gardening Utils

Gardening calculators and planners. Seed starting, frost dates, soil volume, compost ratios, plant spacing, and watering schedules — all client-side.

Companion Planting Lookup

Find which plants grow well together and which to keep apart, with compatibility charts and planting tips.

Compost Ratio Calculator

Balance green and brown materials to achieve the ideal carbon-to-nitrogen ratio for fast, healthy composting.

Fertilizer Ratio Calculator

Calculate how much fertilizer to apply based on N-P-K ratios, bag weight, and target application rate per area.

Frost Date Lookup

Find average first and last frost dates for your area to plan safe planting and harvesting windows.

Garden Bed Planner

Design raised bed and in-ground garden layouts with drag-and-drop plant placement and spacing guides.

Hardiness Zone Lookup

Find your USDA plant hardiness zone based on location to determine which perennials will survive your winters.

Harvest Date Estimator

Estimate when crops will be ready to harvest based on planting date, variety, and days to maturity.

Lawn Seed Calculator

Calculate how much grass seed you need based on lawn area, seed type, and whether you are seeding or overseeding.

pH Adjustment Calculator

Calculate how much lime or sulfur to add to raise or lower soil pH to the target level for your plants.

Plant Spacing Calculator

Calculate how many plants fit in a bed based on dimensions and recommended spacing, with grid and offset layouts.

Rainfall Tracker

Log and chart weekly rainfall to track whether your garden is getting enough water throughout the season.

Seed Starting Date Planner

Calculate when to start seeds indoors and transplant outdoors based on your last frost date and crop type.

Soil Volume Calculator

Calculate how much soil or mulch you need to fill raised beds, pots, and garden areas in cubic feet or yards.

Sunlight Hours Estimator

Estimate daily sunlight hours for your garden based on location, season, and orientation to classify sun exposure.

Watering Schedule Generator

Generate a weekly watering schedule based on plant types, soil conditions, weather, and container or ground planting.

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