mm a Barleycorn

mm a ℓP | mm a ym | mm a zm | mm a am | mm a Em | mm a f | mm a fm | mm a re | mm a X | mm a pm | mm a b | mm a AU | mm a A | mm a nm | mm a µin | mm a μ | mm a μm | mm a Twip | mm a mil | mm a cin | mm a cl | mm a Point | mm a Pica | mm a Barleycorn | mm a cm | mm a Fingerbreadth | mm a in | mm a in (US) | mm a Nail (Cloth) | mm a Handbreadth | mm a dm | mm a Hand | mm a Finger (Cloth) | mm a li | mm a li (US) | mm a Span (Cloth) | mm a qr | mm a ft | mm a ft | mm a Cubit (UK) | mm a Cubit (Greek) | mm a Long Cubit | mm a Aln | mm a Russian Archin | mm a Vara Castellana | mm a yd | mm a m | mm a Ell | mm a Famn | mm a fath | mm a fath (US) | mm a Ken | mm a Vara De Tarea | mm a Vara Conuquera | mm a Reed | mm a Long Reed | mm a rd | mm a Perch | mm a Pole | mm a rd (US) | mm a Rope | mm a dam | mm a ch | mm a ch (US) | mm a Roman Actus | mm a Arpent | mm a hm | mm a Cable | mm a Cable (UK) | mm a fur | mm a fur (US) | mm a Cable (US) | mm a kyd | mm a km | mm a Mi (Roman) | mm a mi | mm a mi (US) | mm a mi | mm a nmi | mm a NM (UK) | mm a lea | mm a st league | mm a Nautical League | mm a Nautical League (UK) | mm a Mm | mm a Polar Radius | mm a R⊕ | mm a RJ | mm a Light Sec | mm a Earth Moon Distance | mm a R☉ | mm a Gm | mm a Light Min | mm a AU | mm a Earth Sun Distance | mm a Tm | mm a Light Hr | mm a Light Day | mm a Pm | mm a ly | mm a pc | mm a kly | mm a kpc | mm a Zm | mm a Mly | mm a million ly | mm a Mpc | mm a Ym | mm a Gly | mm a billion ly