I've been wanting to use rogue trader equipment in dark heresy, but i'm unsure how to convert rogue trader equipment into thrones. Any help on this?

Wanting the same thing myself, I simply asked my GM and gave him a list of the items i wanted prices for (some from the core rulebook, some from the RT supplement Into the Storm).

THESE NUMBERS ARE HOUSE RULES. Not RAW. Just some stuff my friend came up with, y'know?

He looked at availability and prices of similar items with similar availability, and came up with these numbers:

From Rogue Trader

Mordian Power Sword (pg 130): 3000 t

Augmetic Senses (148): 3500 t

Bionic Heart (149): 3000 t

Cranial Armor (149): 1750 t

Locator Matrix (150): 2000 t

MIU Weapon Interface (151): 2000 t

Subskin Armor (151): 5000 t per appendage

Synthetic Muscle Grafts (151): 1000 t

Respiratory Filter Implant (151): 1000 t

Voidskin (152): 1500 t

From Into the Storm:

Sniper Rifle (pg 111): 350 t

Beamer Meltagun (114): 9000 t

Razorweb Launcher (118): 13500 t

Entropic Accelerator (118): 25000 t

Combat Shield (121): 150 t

Parrying Dagger (122): 100 t

Forearm Powerblade (125): 7000 t

Burning Blade (124): 12500 t

Macro Hammer (125): 12500 t

Flip Belt (136): 25000 t

Flex Tent (136): 300 t

Power Board (137): 47500 t

Pain Ward (141): 1750 t

Vitae Supplement (141): 1750 t