The ⚀sesqui·biqua·lengthel, or ⚀fathom·length

Quantitylength
Formal name⚀sesqui·biqua·lengthel
⚀sesqui·biqua·widthel
⚀sesqui·biqua·heightel 
Formal abbr⚀u.h•b↑lgℓ
⚀u.h•b↑wdℓ
⚀u.h•b↑hgtℓ 
Colloquial name⚀fathomal·length
⚀fathomal·width
⚀fathomal·height
Colloquial abbr

⚀fðm·lg
fðm·wd
⚀fðm·hgt

Derivation⚀velocitel × ⚀sesqui·biqua·timel
Derivation abbr⚀veℓ × ⚀u.h•b↑tmℓ
TGM equiv≈ hexa·Grafut
TGM equiv abbr≈ h•Gf
SI & USC equiv

= 59.9z|69.75d inch
= 5.99z|5.8
125d foot
= 1.67249z|1.55d English ell
= 27/28z|0.Ɛ76z|0.96875d fathom
= 1771.65d millimeter
= 1.77165d meter 

scaling01:04:+:02:1.6

= 3.12497z=3.1d English ell