The math workspace for modern engineering.

Combine the symbolic power of a CAS with the simplicity of a notepad. Define variables, solve integrals, and share your sheets instantly.

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Engineering Template Hub

Jumpstart your analysis. Do not start from scratch; select a pre-validated calculation template.

LRC Circuit Analysis

Series LRC transfer functions, damping ratios, and Laplace-domain response.

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Built for accuracy. Designed for speed.

Every sheet is optimized for real engineering workflows, from symbolic workflows to collaborative reviews.

Symbolic Computer Algebra System

Unlike standard calculators, GrayCalc understands algebra. It integrates, derives, and simplifies expressions symbolically.

integrate(x^2, x) -> x3/3

Engineering Shortcuts

Quick commands and templates help you move from assumptions to results without losing context.

Clean Interface

No cluttered toolbars. Just you, your sheet, and the math. A distraction-free UI.

Shareable Sheets

Send a link to your colleagues. They can view, verify, and fork your calculations instantly in their browser.

Simple pricing for every stage

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Perfect for experimenting and light workloads.
  • 3 sheets
  • Core symbolic engine
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Built for teams who want the full workspace.
  • Unlimited sheets
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Documentation that matches your workflow

Learn formulas, methods, and best practices with guides written for real engineering work.

Getting Started

Learn how to build your first calculation sheet, define variables, and share results.

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Function Reference

Explore the symbolic and numeric functions that power GrayCalc.

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Engineering Playbooks

Templates and walkthroughs for structural, electrical, and fluid analysis.

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