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Tools

Steam & Boiler Calculators

Free engineering tools for working out what steam plant a process actually needs. Everything here is built around Indian practice — capacities in kg/h F&A 100 °C, pressures in kg/cm²(g), and the regulatory position under the Boilers Act, 2025. No sign-up, no gate.

Steam properties are computed from the IAPWS-IF97 industrial formulation, the same standard used for commercial steam tables. Every assumption the tools make is shown on screen and can be changed.
How much boiler do I actually need?

Boiler Capacity Calculator

Work from process heat load or a known steam demand to a boiler capacity in kg/h F&A 100 °C, with the working pressure, the margins applied, and the fuel cost of running it.

Start here if you know your process but not your steam.

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What does a tonne of steam cost me?

Steam Cost Calculator

Enter steam demand, pressure, feedwater temperature and fuel price to get consumption per hour, the steam-to-fuel ratio and the cost per tonne of steam — compared across fuels.

For anyone weighing a fuel switch or budgeting an existing plant.

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What will a boiler rated 2000 kg/h really give me?

F&A 100 °C Converter

Convert between a nameplate kg/h F&A 100 °C rating and the actual evaporation at your working pressure and feedwater temperature. Both directions.

The single most misread number in an Indian boiler quotation.

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How much am I pouring down the drain?

Condensate Recovery Calculator

Work out how much flash steam a condensate line produces, what returning condensate to the feed tank is worth in fuel, water and blowdown, and whether your drain line is big enough.

The fastest payback in most steam plants, and the most commonly ignored.

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What size main do I need, and will it get there?

Steam Pipe Sizing Calculator

Size a steam main on velocity, then check the pressure drop over the run. Also gives the warm-up and running condensate loads, drain point spacing and pocket dimensions.

For laying out a new main, or working out why the far end is starved.

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Steam properties in the units Indian plants use.

Saturated Steam Table

Saturation temperature, enthalpy and specific volume at the pressures Indian boilers are actually specified at — in kg/cm²(g), with kcal/kg alongside kJ/kg.

Reference, computed live from IAPWS-IF97.

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Why these are built for Indian practice

Most steam calculators online are written for UK or US practice — bar(g), pounds per hour, boiler horsepower, and no regulatory context at all. An Indian buyer working from one of them gets an answer in units nobody here quotes against, and misses the two things that decide the purchase: the kg/h F&A 100 °C rating convention, and the position under the Boilers Act, 2025.

These tools work in kg/cm²(g) and kcal/kg, size in kg/h F&A 100 °C, and say plainly what the regulatory position is. Where a number is uncertain, they show a range and name the assumption instead of inventing precision.

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