Biology

Calculate wastewater load, percent removed, detention time, surface overflow rate, and weir loading in US or metric units.

Paste a protein sequence to calculate theoretical molecular weight in Da, kDa, and g/mol with cleanup reporting and ambiguity handling.

Estimate a pet-sitting booking cost by visit, night, day, or hour, with extra-pet, holiday, recurring, and one-time charges.

Calculate mixed liquor volatile suspended solids (MLVSS) in mg/L from MLSS and either volatile solids percent or fixed solids.

Estimate a tree’s appraised value from DBH, ratings, and base price, with step-by-step math and clear method notes.

Calculate tree spacing, trees per acre, total trees, and staggered-row density with a quick canopy crowding check.

Estimate tree height with angle and distance or shadow comparison, with slope-aware base adjustment and optional uncertainty range.

Find tree diameter from circumference or diameter input, with DBH measuring-height notes and field guidance for slopes, forks, and swell.

Estimate a living tree’s age from trunk circumference or diameter, tree species, and a growth factor.

Estimate leaves on a tree from canopy size, sample leaf count, and LAI, with round or oval canopy options and a low-high range.