Mechanical Engineering Formula

The complete mechanical engineering formula reference, rebuilt from the Mechanical Engineering Formula Guide (edition 4.1). Everything works offline, with no ads and no account.

WHAT'S INSIDE

• 2,000+ formulas across 15 chapters: Thermodynamics, IC Engines, Strength of Materials, Fluid Mechanics & Hydraulic Machines, Heat & Mass Transfer, Theory of Machines, Manufacturing, Refrigeration & Air Conditioning, Power Plant, Machine Design, Applied Mechanics, Engineering Mathematics, Basic Electrical, Engineering Economics

• Appendices: SI units and prefixes, US customary units, property tables and charts

• Every formula shows what it is for, its symbols with meanings and units, and its conditions of use

• 327 worked examples with full step-by-step solutions

• 160 exam-style practice questions (multiple choice, multiple select, numerical) with answers and explanations

BUILT FOR DAILY USE

• Formula of the Day on the home screen

• Two short daily quizzes: fill the missing term, pick the right unit, identify the formula

• Streak counter to keep you going

• Save formulas and revise them as spaced-repetition cards

TOOLS

• Unit converter with 30 unit families. Type once, see every unit at the same time, with a unit-trap tip for each family (gauge vs absolute pressure, °C vs K differences, rpm vs rad/s and more)

• Solve-any-variable calculators for 970 core formulas: enter the known values, choose units, get the unknown

MADE FOR READING ON A PHONE

• Large, crisp math rendering that scales with your text size

• A−/A+ text size control and dark mode

• One formula per card, generous spacing, nothing cramped

• Search across every formula, topic and symbol meaning

• Share any formula as a clean image card

FREE AND PREMIUM

About 89% of formulas, the unit converter, search, bookmarks, Formula of the Day and daily quizzes are free.

A single one-time Premium purchase unlocks all worked examples, the remaining advanced formulas, all calculators and the timed practice test. No subscription. Restore it on any phone with the same Google account.

WHO IT IS FOR

Mechanical engineering students, graduates preparing for job and competitive exams, and working engineers who need a reliable pocket reference.

Content follows the Mechanical Engineering Formula Guide by Emran Hossain (Engineers Cafe). For study and exam preparation. Check applicable codes, standards and manufacturer data before professional use.