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Input value to see grid scale comparison.

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About

In heavy industry and district heating, power capacity is often designated in Gigacalories per hour (Gcal/h). However, electrical engineering specifications and international standards predominantly use Megawatts (MW). This discrepancy necessitates a reliable conversion tool for engineers verifying turbine output or boiler capacity. Accuracy is paramount; a miscalculation in grid capacity scaling can lead to significant operational inefficiencies.

This tool facilitates the direct conversion of thermal flow rates to electrical power units. It utilizes the mechanical equivalent of heat where 1 Gcal/h is energetically equivalent to approximately 1.163 MW. The interface is optimized for large-scale values typical of nuclear or coal-fired power plants, handling inputs up to several thousand units without precision loss.

power converter Gcal/h to MW industrial engineering thermal power megawatt

Formulas

The conversion factor is derived from the definition of the calorie and the watt. The precise calculation used is:

PMW = PGcal/h × 1.163

To convert to other prefixes:

PkW = PMW × 1000
PGW = PMW ÷ 1000

Reference Data

Gcal/hMegawatts (MW)Kilowatts (kW)Approx. Scale Context
0.861.001,000Small industrial boiler
10.0011.6311,630District heating block
50.0058.1558,150Large hospital complex
100.00116.30116,300Small Power Plant unit
430.00500.00500,000Standard Coal Unit
860.001,000.001,000,000Nuclear Reactor (1 GW)
2,580.003,000.003,000,000Major Hydro Dam
10,000.0011,630.0011,630,000Regional Grid Load

Frequently Asked Questions

This tool strictly converts energy flow units. It converts Gcal/h (Thermal) to MW (Thermal). If you are calculating electrical output from a thermal source, you must manually apply the efficiency factor (typically 33-45% for steam turbines).
It is a truncated decimal. The exact value is 10^9 calories / 860,421 calories per kWh. Practically, 1.163 is the standard engineering approximation used in ISO standards.
Yes. Gcal/h is also used to measure cooling loads in large chiller systems. The conversion to MW (of cooling power) remains mathematically identical.
The tool handles floating-point numbers up to standard JavaScript limits (approx 1.7e308), covering any physically possible power plant output.