Engineering Applications Free
235 calculators
Transparent equations, visible substitution, field interpretation, copy, print, and generic PDF output—without an account.
Browse all Free toolsSVE Group Engineering Toolkit
235 engineering calculators.
Free to use.
A complete public library of practical engineering and commissioning tools for building design, construction, field verification, operation, and evaluation—with no account required.
- No account required
- Transparent equations
- Generic PDF and copy tools
Four coordinated collections
Choose an engineering discipline
Each collection connects fundamental equations to design decisions, construction coordination, and commissioning verification.
Mechanical engineering
Mechanical
HVAC, air systems, hydronics, pumps, fans, heat transfer, controls, testing, and commissioning calculations.
84 available tools →Electrical engineering
Electrical
Power, circuits, motors, transformers, generators, conductors, voltage drop, power quality, and commissioning calculations.
24 available tools →Plumbing engineering
Plumbing
Domestic water, drainage, stormwater, fuel systems, pumps, water heating, pressure, and commissioning calculations.
62 available tools →Commissioning engineering
Commissioning
Field verification, functional performance, trending, testing, acceptance screening, and building-performance calculations.
65 available tools →One technical platform
Free tools now. More ways to work are coming.
Use every completed calculator today, explore the growing technical resource center, and preview the products being developed next.
SVE Group Resource Store
Field-ready technical products
Commissioning checklists, verification packages, templates, manuals, technical guides, and downloadable resources.
Preview the storefrontEngineering Applications Pro
A professional workspace
Saved projects, calculation history, reusable data, linked workflows, scenario comparisons, and professional project reports.
Preview ProStart with field work
Commissioning and construction tools
Commissioning Field Tools
Reduce test data into clear, reviewable results without separating the arithmetic from its assumptions, instrumentation, and acceptance criteria.
- Percent of design
- Fan and pump checks
- Heat-transfer checks
- Electrical loading
Construction Field Tools
Check dimensions, quantities, velocity, pressure loss, electrical relationships, and coordination impacts before they become rework.
- Duct geometry
- Pipe flow and pressure
- Voltage drop
- Water pressure budget
Engineering Support from SVE Group
When a field calculation becomes a project question, SVE Group can help connect the result to design requirements, commissioning objectives, and real building performance.
Explore SVE Group servicesTechnical integrity by design
Calculations that show their work
Each tool exposes its governing relationship, entered-value substitution, intermediate results, interpretation, limitations, and source record. Results support informed decisions without replacing project requirements or professional judgment.
Learn more about SVE Group- 01Define
Equation, variables, units, assumptions, and limits.
- 02Calculate
Validated input, visible steps, and unit-consistent output.
- 03Interpret
Commissioning meaning, warnings, and field procedure.
- 04Apply
Use the result alongside project criteria, field conditions, and engineering judgment.
Now available: Engineering Insights
Technical content built around real project work.
Read 27 practical articles on commissioning, controls, mechanical, electrical, plumbing, field verification, and eOMSI, each connected to the applicable Free tools.
When the calculation points to a bigger question
Connect the result to real building performance.
Visit SVE Group for engineering and commissioning services, project experience, technical insights, and direct support.