FRENESDEIT
My saved calculations
TesCalculs

Technical

Verified tools for HVAC, IT, maintenance and engineering.

Technical results state their method, assumptions and limits. They do not replace regulatory or professional validation.

Air conditioning & HVAC

BTU/h ↔ kW conversion

Convert thermal power between international BTU per hour, watts and kilowatts.

Open →

Airflow and ACH

Calculate airflow or air changes per hour from room volume.

Open →

Duct air velocity and diameter

Relate airflow, mean velocity and internal diameter for a circular duct.

Open →

IT & Datacenter

IT equipment heat output

Convert absorbed IT electrical power into a steady-state room heat load.

Open →

Network transfer time

Estimate transfer duration from data size and useful throughput.

Open →

Theoretical usable RAID capacity

Calculate raw and usable RAID 0, 1, 5, 6 and 10 capacity.

Open →

Prepared domains

Industrial electricity · Mechanics · Hydraulics · Pneumatics · Electronics · Maintenance · Energy · Machining