Credit

The credit (cR) is the standard currency of the UNSC. Credits can be spent in the form of "credit chips."^[1]

Equivalents

There are multiple equivalent currencies used throughout the galaxy. Trade rates are unknown.

Item	Cost Per Unit
Vehicles
Hog - Limited Edition Wood-Trimmed Classic Edition	cR 91,000
Hog - Standard model	cR 86,000
Hog - Manual-Transmission Version	cR 81,000
M12 Warthog	cR 52,000^[4]
Weapons
Sniper Rifle System 99-S5 Anti-Matériel	cR 8,141
W/AV Model 6 Grindell/Galilean Nonlinear Rifle	cR 218,000^[5]
M363 Remote Projectile Detonator	cR 6,950
M739 Light Machine Gun	cR 3,182
M90A Close Assault Weapon System	cR 2,200^[6]
BR85 Heavy Barrel Service Rifle	cR 1,906
M395 Designated Marksman Rifle	cR 1,833
MA5D Individual Combat Weapon System	cR 1,693
MA5C ICWS Assault Rifle	cR 1,686^[7]
M6G Personal Defense Weapon System	cR 1,615^[6]
M7057/Defoliant Projector	cR 1,520^[8]
M7/Caseless Submachine Gun	cR 1,484^[6]
M9 High-Explosive Dual-Purpose Grenade	cR 30^[6]
Asymmetric Recoilless Carbine-920	cR 63,405
Food
World Cuisine Moa Burger Combo	cR 7.77^[9]
World Cuisine Extra Lean Burger Combo	cR 12.99^[9]

In Halo: Reach, there are many strategies to earning many credits to increase in rank and so on. A very popular technique is shown below.

A common trick is to go to the 3rd mission, and sprint past all of the enemies until you get to the room with the target locator. Fire at the large group of covenant that has probably amassed in chasing you, and move to the back of the blast doors, where you will get a checkpoint. if you have done this correctly, you should get a Killionare medal each time. Keep reloading the last checkpoint as many times as you want, then finish the rest of the level. With the introduction of custom challenges on Halo Waypoint, it is possible to get 20,000 credits every few seconds with this tactic. This tactic has since been patched.

UNSC personnel sometimes casually refer to credits as "credaroos," analogous to the way Americans refer to dollars as "buckaroos."^[10]
According to Halo: The Fall of Reach, there are no coins or papers used in the credit system,^[11] but in the Audio Logs in Halo 3: ODST, an old woman is heard breaking an ATM with money in the form of coins and presumably paper coming out. Another ATM, found in gameplay, which also houses an Audio Log, is also constantly spitting out money until the Audio Log is collected.
Credits are used by the player in Halo: Reach to buy Armor Permutations, Firefight Voices, and Armor effects for their Spartan character in the game. These credits also determine Rank.^[12]
If a Marine is killed with friendly fire in Halo 3, another one may say "Okay, now you owe me twenty credits!"
The headhunters Jonah and Roland would constantly bet twenty credits while on missions.^[13]