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There are 24 achievements in Hitman: Blood Money worth a total of 1000 

Picture	Name	Description
	1st mission complete	"Death of a Show man" completed on any difficulty.	25
	Rookie mode complete	Completed Rookie difficulty.	25
	Normal mode complete	Completed Normal difficulty.	50
	Expert mode complete	Completed Expert difficulty.	75
	Professional mode complete	Completed Professional difficulty.	150
	Silent Assassin	A Silent Assassin rating has been awarded.	25
	5 Normal Silent Assassins	5 Silent Assassin ratings awarded on the Normal difficulty.	25
	5 Expert Silent Assassins	5 Silent Assassin ratings awarded on the Expert difficulty.	50
	5 Professional Silent Assassins	5 Silent Assassin ratings awarded on the Professional difficulty.	100
	Fully Customized Silverballers	All custom Silverballer components purchased.	25
	Fully Customized SMG Tactical	All custom SMG Tactical components purchased.	25
	Fully Customized SP12 Shotgun	All custom Shotgun components purchased.	25
	Fully Customized M4	All custom M4 components purchased.	25
	Fully Customized W2000 Sniper	All custom W2000 components purchased.	25
	All firearms collected	All firearms collected and displayed in Hideout.	100
	Tier 2 Kruger Schmidt	Tier 2 of the Kruger Schmidt upgrade shop unlocked.	5
	Tier 3 Kruger Schmidt	Tier 3 of the Kruger Schmidt upgrade shop unlocked.	15
	Tier 4 Kruger Schmidt	Tier 4 of the Kruger Schmidt upgrade shop unlocked.	20

[edit] Secret

Picture	Name	Description
	47 kills	A mission has been completed with precisely 47 kills.	20
	Accidents do happen...	A successful accident kill has been performed.	20
	Special Rating	A Special Rating has been awarded.	20
	High Roller	$5,000,000 have been accumulated.	50
	Notorious	47 is the world's most wanted.	50
	Redemption	You can't keep a good man down.	50