Biology

Calculate basal area for one tree, a fixed-area plot, or a prism sample from DBH, circumference, or field tallies.

Calculate dry fertilizer for direct mix or injector stock tanks using bag %N, target ppm, water amount, and ratio.

Calculate total water potential from pressure and solute potential, or derive solute potential from concentration and temperature.

Estimate seasonal vegetable harvest in pounds from plant count, planted bed area, or row length using your yield rate.

Estimate vegetable seeds, seedlings, and packets to buy from row, bed, or area spacing with germination and buffer built in.

Calculate air VPD in kPa from temperature and humidity, or find the humidity or temperature needed for a target VPD.

Calculate soil for garden beds, round spaces, known areas, and planters in cubic feet, cubic yards, and whole bags.

Estimate sod needed, add waste, and see pallets, rolls, pieces, or square feet to order for your lawn.

Estimate potting soil for pots, planters, grow bags, and raised beds, then convert volume to bags with rim-gap and extra-soil options.

Calculate how many plants fit in a rectangular bed, including plants per row, rows, edge space, and centered starting marks.