f a R⊕

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