Omni Calculator vs Microsoft Calculator

Omni Calculator9.0Visit MCMicrosoft Calculator8.6Visit

Higher score Omni Calculator #3 in Calculators 9.0/10 Free plan Free plan✓ 4 of 6 features Try Omni Calculator

vs

MC Microsoft Calculator #7 in Calculators 8.6/10 Free plan Free plan✓ 4 of 6 features Visit site

• Omni Calculator fits best

  People seeking specialized calculators and worked examples

• Microsoft Calculator fits best

  Windows users wanting a capable free desktop calculator

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Side by side

Feature	Omni Calculator 9.0/10 Visit ↗	MCMicrosoft Calculator 8.6/10 Visit ↗
At a glance
Editor score	9.0	8.6
Ranking	#3 in Calculators	#7 in Calculators
Best for	People seeking specialized calculators and worked examples	Windows users wanting a capable free desktop calculator
Pricing model	Free	Free
Starting price	Free plan	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Cloud, Mobile	Desktop
Platforms	Web, Android	Windows
Support	Email, Docs	Community, Docs
Built for	Solo, Small business, Mid-market, Enterprise	Solo, Small business
Features Omni Calculator 4/6 · Microsoft Calculator 4/6
Scientific functions	✓	✓
Graphing	✓	✓
Equation solver	✓	✓
Financial functions	✓ (best)	Not checked yet
Offline mode	Not checked yet	Not checked yet
Calculation history	Not checked yet	✓ (best)
Our review
Pros	Thousands of calculators span math, science, finance, health and construction. Two-way inputs, unit conversions and currency conversions help solve varied problems. Articles explain formulas; Android adds search, favorites and recent calculators.	Includes scientific, programmer, and graphing modes alongside standard arithmetic. Plots equations and supports equation solving in graphing mode. Adds date calculations, unit and currency conversion, history, and memory.
Cons	The Android app is available, but iOS is not offered. Locally saved input values are limited to the browser. It focuses on calculations rather than building custom spreadsheets or formulas.	Available as a desktop application for Windows only. Does not include AI features. Support channels are community and documentation.
Our verdict	Omni Calculator is a free library of specialized calculators for students, professionals and general users who want answers without building formulas themselves. Its web and Android offerings cover math, science, finance, health,… Read the review →	Microsoft Calculator is an open-source desktop calculator maintained by Microsoft, aimed at Windows users who need more than standard arithmetic. It brings scientific and programmer modes into the same application as everyday calculations,… Read the review →

Strengths and trade-offs

• Omni Calculator — where it wins

  • Thousands of calculators span math, science, finance, health and construction.
  • Two-way inputs, unit conversions and currency conversions help solve varied problems.
  • Articles explain formulas; Android adds search, favorites and recent calculators.

  Where it doesn't

  • The Android app is available, but iOS is not offered.
  • Locally saved input values are limited to the browser.
  • It focuses on calculations rather than building custom spreadsheets or formulas.

• Microsoft Calculator — where it wins

  • Includes scientific, programmer, and graphing modes alongside standard arithmetic.
  • Plots equations and supports equation solving in graphing mode.
  • Adds date calculations, unit and currency conversion, history, and memory.

  Where it doesn't

  • Available as a desktop application for Windows only.
  • Does not include AI features.
  • Support channels are community and documentation.

• Omni Calculator9.0/10 · Free plan

  A free library of specialized calculators with explanations, conversions and two-way inputs.

  Try Omni CalculatorFull verdict →
• MCMicrosoft Calculator8.6/10 · Free plan

  A free Windows desktop calculator that goes beyond arithmetic with graphing and conversions.

  Visit siteFull verdict →