Amount of Substance Converters
Convert between amount units: moles, millimoles, micromoles, nanomoles, and number of particles (Avogadro's number). The bridge between macroscopic measurements and atomic-scale chemistry.
The mole is chemistry's central counting unit — it bridges the gap between atoms and grams, letting you calculate how many molecules are in a measurable mass of substance. Converting between moles and sub-mole quantities (mmol, µmol, nmol) is routine in analytical and biological chemistry, while converting between moles and particle counts uses Avogadro's number (6.022 × 10²³).
46 Amount of Substance Conversions
Attomoles to Femtomoles Converter
fmol = amol × 0.001
Convert attomoles to femtomoles by dividing by 1000. The decimal step that separates digital single-molecule counting from analog photon-summed detection.
Attomoles to Moles Converter
mol = amol × 10⁻¹⁸
Convert attomoles to moles by multiplying by 10⁻¹⁸. The bridge across eighteen orders of magnitude between ultrasensitive single-molecule detection and the bench-scale moles textbooks calculate in.
Attomoles to Picomoles Converter
pmol = amol × 10⁻⁶
Convert attomoles to picomoles by multiplying by 10⁻⁶. The six-decade gap separating single-molecule digital detection and the pmol scale of conventional analytical chemistry.
Equivalents to Moles Converter
mol = eq / n (where n = valence factor)
Convert equivalents to moles by dividing by the valence factor n. It's the one that depends on the reaction itself, since one mole of compound delivers different numbers of equivalents in different chemistry.
Femtomoles to Attomoles Converter
amol = fmol × 1000
fmol × 1000 = amol. One prefix decade, but it's the one between LC-MS/MS detection limits and the attomole regime where single-molecule and digital-counting techniques start.
Femtomoles to Micromoles Converter
µmol = fmol × 10⁻⁹
Nine prefix decades sit between a trace LC-MS peak (fmol) and a bench-scale starting amount (µmol). The conversion is just ×10⁻⁹, but it's the recovery-fraction calculation it lands inside that actually matters.
Femtomoles to Moles Converter
mol = fmol × 10⁻¹⁵
Convert femtomoles to moles by multiplying by 10⁻¹⁵. The bridge across fifteen orders of magnitude between trace LC-MS detection limits and the bench-scale moles textbooks calculate in.
Femtomoles to Nanomoles Converter
nmol = fmol × 10⁻⁶
Convert femtomoles to nanomoles by dividing by 10⁶. The factor of a million between LC-MS injection-scale amounts and the nanomole units heavy-isotope reagent vials are sold in.
Femtomoles to Picomoles Converter
pmol = fmol / 1000
Convert femtomoles to picomoles by dividing by 1000. The decimal step between the femtomole detection limits of modern mass spectrometry and the picomole stocks an analyst actually loads from.
Grams to Moles Converter
moles = grams ÷ molar mass (g/mol)
Convert grams to moles by dividing by molar mass. The step that turns what's on the balance into something you can reason about stoichiometrically.
Liters at STP to Moles Converter
mol = L ÷ 22.414 (at 0°C, 1 atm)
Convert liters of gas at STP to moles by dividing by 22.414. The molar-volume shortcut that closes the gas-stoichiometry loop without invoking PV = nRT from scratch.
Micromoles to Femtomoles Converter
fmol = µmol × 10⁹
Convert micromoles to femtomoles by multiplying by 10⁹. The bridge across nine orders of magnitude between bench-stock amounts and the femtomole quantities single injections of an LC-MS method consume.
Micromoles to Millimoles Converter
mmol = µmol × 0.001
Convert micromoles to millimoles by dividing by 1000. The rollup step that takes per-reaction amounts back to the scale used for bulk inventory and clinical reporting.
Micromoles to Moles Converter
mol = µmol / 1000000
Convert micromoles to moles by dividing by 10⁶. The bookkeeping step between µmol quantities measured at the bench and the mol-based units stoichiometric calculations expect.
Micromoles to Nanomoles Converter
nmol = µmol × 1000
Convert micromoles to nanomoles by multiplying by 1000. The scale-down step that takes a stock-concentration number into the per-reaction dose most biochemistry works in.
Micromoles to Particles Converter
particles = µmol × 6.022 × 10¹⁷
Convert micromoles to number of particles by multiplying by 6.022 × 10¹⁷. Used at the handoff between bench-scale µmol amounts and the absolute molecule counts that nanoparticle and single-molecule work needs.
Micromoles to Picomoles Converter
pmol = µmol × 10⁶
Convert micromoles to picomoles by multiplying by 10⁶. The six-decade gap separating vendor antibody stocks and downstream binding-assay injections.
Millimoles to Micromoles Converter
µmol = mmol × 1000
Convert millimoles to micromoles by multiplying by 1000. The decimal step between synthetic-chemistry reaction scales and the µmol quantities biochemistry assays actually use.
Millimoles to Moles Converter
mol = mmol ÷ 1000
Divide by 1000. That's the conversion. The reason it matters is that a balanced equation expects moles, but every titration burette and syringe pump on the bench reads in millimoles, so the division happens at the very end of almost every stoichiometry calculation.
Millimoles to Nanomoles Converter
nmol = mmol × 1000000
Convert millimoles to nanomoles by multiplying by 10⁶. The factor of a million between bench-scale stock amounts and the nanomole quantities trace-level assays actually consume.
Millimoles to Particles Converter
particles = mmol × 6.022 × 10²⁰
Convert millimoles to particle count by multiplying by 6.022 × 10²⁰. Used at the handoff between mmol-scale reagent prep into the per-atom count behind a turnover-number calculation.
Moles to Attomoles Converter
amol = mol × 10¹⁸
Convert moles to attomoles by multiplying by 10¹⁸. A eighteen-decade SI prefix jump between bench-scale chemistry and single-molecule analytical detection.
Moles to Equivalents Converter
eq = mol × n (where n = valence factor for the reaction)
Convert moles to equivalents by multiplying by the reaction's valence factor. Used to translate moles into the equivalent form titration calculations actually default to.
Moles to Femtomoles Converter
fmol = mol × 10¹⁵
Convert moles to femtomoles by multiplying by 10¹⁵. A jump of fifteen prefix decades, the gap between bench-scale prep and ultrasensitive analytical detection.
Moles to Grams Converter
grams = moles × molar mass (g/mol)
Convert moles to grams by multiplying by molar mass. The arithmetic every chemist runs on the way to a balance — free converter with the formula, worked examples, and a common-values table.
Moles to Liters at STP Converter
L = mol × 22.414 (at 0°C, 1 atm)
Convert moles of gas to liters at STP by multiplying by 22.414. The molar-volume shortcut that closes any gas-stoichiometry calculation without invoking PV = nRT from scratch.
Moles to Micromoles Converter
μmol = mol × 1,000,000
Convert moles to micromoles by multiplying by 10⁶. A six-decade SI prefix jump between benchtop reagent prep and the µmol-scale aliquots biochemistry assays use.
Moles to Millimoles Converter
mmol = mol × 1000
Multiply by 1000. Moles are what the equation uses; millimoles are what you write on the bench, because 50 mmol reads more naturally than 0.050 mol.
Moles to Nanomoles Converter
nmol = mol × 1000000000
Nine prefix decades from mol to nmol: ×10⁹. The span from benchtop reagent prep down to the trace-biochemistry scale where most binding studies live.
Moles to Particles (Atoms/Molecules) Converter
particles = mol × 6.02214076 × 10²³
Convert moles to particle count by multiplying by Avogadro's number, 6.022 × 10²³. The fundamental statement of the mole concept.
Moles to Picomoles Converter
pmol = mol × 1000000000000
Convert moles to picomoles by multiplying by 10¹². Twelve prefix decades sit between benchtop reagent prep and the pmol scale of molecular-biology assays.
Nanomoles to Femtomoles Converter
fmol = nmol × 10⁶
Convert nanomoles to femtomoles by multiplying by 10⁶. A six-decade SI prefix jump between nmol-stock standards and fmol-scale LC-MS/MS detection limits.
Nanomoles to Micromoles Converter
µmol = nmol ÷ 1000
Convert nanomoles to micromoles by dividing by 1000. The roll-up step that takes per-reaction amounts back to the stock-ordering scale.
Nanomoles to Millimoles Converter
mmol = nmol ÷ 1000000
Convert nmol to mmol by dividing by 10⁶. Six prefix decades sit between per-well screening consumption and bench-scale synthesis prep.
Nanomoles to Moles Converter
mol = nmol ÷ 1000000000
Convert nmol to mol by dividing by 10⁹. A nine-decade SI prefix jump between trace-detection and benchtop-scale chemistry.
Nanomoles to Particles Converter
particles = nmol × 6.022 × 10¹⁴
Convert nanomoles to particle count by multiplying by 6.022 × 10¹⁴. Used at the handoff between molecular-biology nmol-stock labels into the per-molecule counts probe-stoichiometry needs.
Nanomoles to Picomoles Converter
pmol = nmol × 1000
1 nmol = 1000 pmol, just the nano-to-pico prefix step. Trivial arithmetic, but the bridge from precious-ligand stock amounts down to per-injection biophysical-binding well quantities.
Particles to Micromoles Converter
µmol = particles ÷ (6.022 × 10¹⁷)
Convert particle count to micromoles by dividing by 6.022 × 10¹⁷. Used at the handoff between per-particle quantitation into the µmol-scale reagent ordering chemistry runs in.
Particles to Millimoles Converter
mmol = particles ÷ (6.022 × 10²⁰)
Convert particle count to millimoles by dividing by 6.022 × 10²⁰. Comes up at the boundary of per-particle measurements into the mmol-scale reagent budgets bench chemistry uses.
Particles to Moles Converter
mol = particles / 6.02214 × 10²³
Convert particle count to moles by dividing by Avogadro's number, 6.022 × 10²³. Comes up at the boundary of per-particle counting into mole-scale chemistry.
Particles to Nanomoles Converter
nmol = particles ÷ 6.022 × 10¹⁴
Convert particle count to nanomoles by dividing by 6.022 × 10¹⁴. A unit step between per-particle counting into the nmol scale ensemble assays use.
Picomoles to Attomoles Converter
amol = pmol × 10⁶
Multiply pmol by 10⁶ for amol. Six prefix decades — the gap between certified-reference standards and the single-molecule detection floor of modern immunoassays.
Picomoles to Femtomoles Converter
fmol = pmol × 1000
Convert pmol to fmol by multiplying by 1000. The decimal step bridging picomole-stock dilutions and femtomole-scale LC-MS/MS sensitivity checks.
Picomoles to Micromoles Converter
µmol = pmol × 10⁻⁶
Multiply by 10⁻⁶ — six prefix decades between picomoles (per-injection consumption) and micromoles (the scale you order standards in).
Picomoles to Moles Converter
mol = pmol ÷ 1000000000000
Convert pmol to mol by dividing by 10¹². A jump of twelve prefix decades, the gap between trace LC-MS detection and benchtop-scale chemistry.
Picomoles to Nanomoles Converter
nmol = pmol / 1000
Divide pmol by 1000 to get nmol. A clean prefix step, but the bridge between per-injection LC-MS amounts and the nmol-scale stock vials those injections draw from.