Depends on the Cost of Living Allowance (COLA) allotted for the location they're stationed at.
Sergeant First Class (E7) is a rank typically used for Platoon Sergeants (who are the senior NCOs in a platoon), and you see a lot of E7s as the senior NCOs of staff offices.
Private (E1) = PVTPrivate (E2) = PV2Private First Class (E3) = PFCSpecialist (E4) = SPC (formerly SP4)Corporal (E4) = CPLSergeant (E5) = SGTStaff Sergeant (E6) = SSGSergeant First Class (E7) = SFCMaster Sergeant (E8) = MSGFirst Sergeant (E8) = 1SGSergeant Major (E9) = SGMCommand Sergeant Major (E9) = CSMSergeant Major of the Army (E9) = SMA
Enlisted:Private (E1): PVTPrivate (E2): PV2Private First Class (E3): PFCSpecialist (E4): SPCCorporal (E4): CPLSergeant (E5): SGTStaff Sergeant (E6): SSGSergeant First Class (E7): SFCMaster Sergeant (E8): MSGFirst Sergeant (E8): 1SGSergeant Major (E9): SGMCommand Sergeant Major (E9): CSMSergeant Major of the Army (E9): SMAWarrant Officers:Warrant Officer 1: WO1Warrant Officer 2: WO2Warrant Officer 3: WO3Chief Warrant Officer 4: WO4Chief Warrant Officer 5: WO5Commissioned Officers:Second Lieutenant (O1): 2LTFirst Lieutenant (O2): 1LTCaptain (O3): CPTMajor (O4): MAJLieutenant Colonel (O5): LTCColonel (O6): COLBrigadier General (O7): BGMajor General (O8): MGLieutenant General (O9): LTGGeneral (O10): GEN
PVT - Private (E1) PV2 - Private (E2) PFC - Private First Class (E3) SPC - Specialist (E4) CPL - Corporal (E4) SGT - Sergeant (E5) SSG - Staff Sergeant (E6) SFC - Sergeant First Class (E7) MSG - Master Sergeant (E8) 1SG - First Sergeant (E8) SGM - Sergeant Major (E9) CSM - Command Sergeant Major (E9) SMA - Sergeant Major of the Army (E9) WO1 - Warrant Officer, Grade One WO2 - Warrant Officer, Grade Two WO3 - Warrant Officer, Grade Three WO4 - Warrant Officer, Grade Four WO5 - Warrant Officer, Grade Five 2LT - Second Lieutenant (01) 1LT - First Lieutenant (O2) CPT - Captain (O3) MAJ - Major (O4) LTC - Lieutenant Colonel (O5) COL - Colonel (O6) BG - Brigadier General (O7) MG - Major General (O8) LTG - Lieutenant General (O9) GEN - General (O10)
e1 e2 e3 e4 e5 e6 e7 e8 e9 e9 e9 O1 o2 o3 o3 o5 o6 o7 o8 o9 o10 commander n chief
Gunnery Sergeant is pay grade E7, and the equivalent Army rank is Sergeant First Class.
The US Army has a sergeant 1st class, it is the pay grade of E7, ranked above a Staff Sergeant and below a Master Sergeant.
In the Army and Marines, it's First Sergeant, which are both pay grade E8. In the Air Force, Master Sergeant is pay grade E7, but First Sergeant isn't a separate rank, although it is denoted with a diamond similar to what it used on Army and Marine Corps First Sergeant rank insignia. In the Air Force, the designated First Sergeant can be pay grades E7 through E9.
In the Army and Marines, it's First Sergeant, which are both pay grade E8. In the Air Force, Master Sergeant is pay grade E7, but First Sergeant isn't a separate rank, although it is denoted with a diamond similar to what it used on Army and Marine Corps First Sergeant rank insignia. In the Air Force, the designated First Sergeant can be pay grades E7 through E9.
Sergeant First Class
Sergeant First Class (E7) is a rank typically used for Platoon Sergeants (who are the senior NCOs in a platoon), and you see a lot of E7s as the senior NCOs of staff offices.
There is no such rank as "First Class Sergeant". You have either Sergeant First Class, which is E7, or First Sergeant, which, along with Master Sergeant, is E8.
E-8 for the actual rank. First Sergeant is also the senior NCO position within a company or troop, and sometimes might be filled by a promotable Sergeant First Class (E7), who will still be referred to as First Sergeant by those in the company.
Sergeant First Class is pay grade E7. In the Army, the next pay grade - E8 - has two ranks within it - Master Sergeant, and First Sergeant. The difference being that a First Sergeant is a company's senior NCO, whereas Master Sergeant tends to denote NCOs holding staff positions.
In the US Army, the next rank above Staff Sergeant would be Sergeant First Class, followed by Master Sergeant and First Sergeant (both grade E8), then by Sergeant Major and Command Sergeant Major (both grade E9). Sergeant Major of the Army is the seniormost noncommissioned officer rank in the US Army. In the US Marine Corps, the next rank above Staff Sergeant (E6) would be Gunnery Sergeant (E7), followed by Master Sergeant and First Sergeant (E8), Master Gunnery Sergeant and Sergeant Major (E9), then Sergeant Major of the Marine Corps. Unlike other military branches of the US Armed Forces, where Staff Sergeant is pay grade E6, Staff Sergeant in the Air Force is pay grade E5 - equivalent to a Sergeant in the Army or Marine Corps. It is followed by Technical Sergeant (E6), Master Sergeant (E7), Senior Master Sergeant (E8), Chief Master Sergeant and Command Chief Master Sergeant (E9), and, finally, Chief Master Sergeant of the Air Force, who - like the Sergeant Major of the Army and the Sergeant Major of the Marine Corps - is the most senior noncommissioned officer in the entire branch. The British, Commonwealth, and some European forces end their enlisted ranks at Staff Sergeant (or equivalent), and rate enlisted personnel senior to Staff/Colour Sergeants as Warrant Officers.
Private (E1) = PVTPrivate (E2) = PV2Private First Class (E3) = PFCSpecialist (E4) = SPC (formerly SP4)Corporal (E4) = CPLSergeant (E5) = SGTStaff Sergeant (E6) = SSGSergeant First Class (E7) = SFCMaster Sergeant (E8) = MSGFirst Sergeant (E8) = 1SGSergeant Major (E9) = SGMCommand Sergeant Major (E9) = CSMSergeant Major of the Army (E9) = SMA
No. USAF TSgt=E6 Army SFC=E7 an Army SSgt=E6