R∞ -e Btu (th)

R∞ -e Hz | R∞ -e m⁻¹ | R∞ -e GHz | R∞ -e K | R∞ -e THz | R∞ -e eV | R∞ -e aJ | R∞ -e Eh | R∞ -e keV | R∞ -e fJ | R∞ -e MeV | R∞ -e pJ | R∞ -e u | R∞ -e nJ | R∞ -e dyn*cm | R∞ -e Erg | R∞ -e µJ | R∞ -e gf*cm | R∞ -e oz*f*in | R∞ -e gf*m | R∞ -e cJ | R∞ -e kgf*cm | R∞ -e dJ | R∞ -e scc | R∞ -e lbf*in | R∞ -e in*lbf | R∞ -e J | R∞ -e N*m | R∞ -e W*s | R∞ -e lbf*ft | R∞ -e ft*lbf | R∞ -e cal (th) | R∞ -e cal (IT) | R∞ -e kgf*m | R∞ -e kp*m | R∞ -e daJ | R∞ -e hJ | R∞ -e KJ | R∞ -e mJ | R∞ -e kW*s | R∞ -e Btu (th) | R∞ -e Btu (IT) | R∞ -e CHU | R∞ -e scf | R∞ -e W*h | R∞ -e Kcal (th) | R∞ -e Kcal (IT) | R∞ -e cal | R∞ -e scy | R∞ -e MJ | R∞ -e mbtu (IT) | R∞ -e hp*h | R∞ -e hp*h | R∞ -e kW*h | R∞ -e Kg of TNT | R∞ -e ton*h | R∞ -e thm | R∞ -e thm | R∞ -e thm | R∞ -e GJ | R∞ -e MBtu (IT) | R∞ -e mmbtu (IT) | R∞ -e EP | R∞ -e MW*h | R∞ -e ton | R∞ -e BOE | R∞ -e TOE | R∞ -e TJ | R∞ -e GW*h | R∞ -e kton | R∞ -e kBOE | R∞ -e PJ | R∞ -e Mton | R∞ -e BBOE | R∞ -e Mtoe | R∞ -e kg | R∞ -e EJ | R∞ -e Gton | R∞ -e Gtoe