Education

20 amino acids — codes, names, codons · 3 curricula

Your attendance %, and how many classes you can still miss

Convert CGPA to percentage and back — instantly

APA / MLA / Chicago / Harvard

See what your education fund grows to — and how much is growth

ρ = m/V — solve for density, mass or volume · 7 curricula

M₁V₁ = M₂V₂ — work out a solution dilution · 3 curricula

"What do I need on the final?"

Codon ↔ amino acid lookup + full code table · 7 curricula

ΔG = ΔH − TΔS — solve and check spontaneity · 3 curricula

Q = mcΔT — solve for heat, mass, specific heat or ΔT · 3 curricula

118 elements, names in your curriculum language · 7 curricula

KE = ½mv² — solve for energy, mass or velocity · 3 curricula

M = objective × eyepiece — work out magnification · 3 curricula

Parse a chemical formula, sum the atomic masses · 7 curricula

M = n/V — solve for molarity, moles, volume or mass · 7 curricula

Moles ↔ particles ↔ mass · 3 curricula

p = mv — solve for momentum, mass or velocity · 3 curricula

GPA across global grading scales

F = Gm₁m₂/r² — solve for force, mass or distance · 7 curricula

F = ma — solve for force, mass or acceleration · 7 curricula

Write any number in words

V = IR — solve for voltage, current or resistance · 7 curricula

How far a measurement is from the true value, as a percentage

pH ↔ pOH ↔ [H⁺] ↔ [OH⁻] — convert any one · 7 curricula

PE = mgh — solve for energy, mass or height · 3 curricula

Solve a : b = c : x for the missing value

Monohybrid & dihybrid crosses, instant ratios · 7 curricula

ax^2+bx+c=0 real + complex

Simplify any ratio to its lowest terms

Nth term and sum of an arithmetic or geometric sequence

n₁sinθ₁ = n₂sinθ₂ — solve for index or angle · 3 curricula

The GPA you need from here to hit your goal

Grade a test in seconds — percentage, letter and a full chart

SSS/SAS/ASA/AAS/SSA

Add up the real cost of a degree, credit by credit

v = fλ — solve for speed, frequency or wavelength · 3 curricula

Your current course grade — and what you need on what’s left