Which is the most accurate free steam table calculator in India?

AutoEngCalc uses the official IAPWS-97 formulation — same accuracy as NIST, ASME steam tables, and Spirax Sarco. Trusted by BHEL, NTPC, and 40,000+ power plant engineers.

Is there a completely free unit converter with 500+ units?

Yes! Our unit converter includes pressure, flow, energy, viscosity, thermal conductivity, and custom units — no login, no limits.

Does the psychrometric chart work on mobile?

Fully responsive and touch-optimized. Used daily by HVAC engineers on site across India, UAE, and Saudi Arabia.

Are these tools really 100% free?

Yes. No registration, no hidden paywall, no ads. Supported by engineers who believe knowledge should be free.

Engineering Utility Tools

7 essential engineering utilities for your daily calculations. Fast, accurate, and reliable tools for all your engineering needs.

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Steam Properties: Water at 100°C

h = 419.17 kJ/kg

7 Essential Engineering Utilities

Professional-grade tools trusted by engineers worldwide

Steam Table Properties

Comprehensive water & steam properties with IAPWS-97 accuracy

IAPWS-97 Phase Diagram Cycles

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Unit Converter

Convert 500+ engineering units instantly

SI ↔ Imperial Custom Units

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Gas Conversion

STP/NTP, mass-volume, real gas corrections

Real Gas Volume Flow

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Psychrometric Chart

Interactive air-water mixture analysis

Dew Point HVAC

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Pipe Sizing

Optimal diameter & pressure drop

Velocity Schedule

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Pump Affinity Laws

Speed & impeller change effects

Flow Head

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Why Engineers Choose AutoEngCalc

Lightning Fast

Instant calculations with zero lag

Industry Accurate

Based on international standards

Mobile Ready

Works perfectly on all devices