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Every calculator you'll ever need for money, health, math, and everyday conversions — worked examples included, nothing to sign up for.

Code Effects is the fastest and most intuitive .NET business rules engine trusted by government entities and Fortune 500 corporations all over the world
Which is more popular?
Based on our record, calculate.at seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | calculate.at | codeeffects.com |
| Pricing | ||
| Company | 2026 | 2009 |
| Listed in |
In their own words, as submitted to SaaSHub.


calculate.at is a lightweight online calculator platform built for fast, practical answers. It offers a growing collection of free utility tools for finance, SaaS metrics, SEO, marketing, infrastructure, and everyday problem-solving. Whether you need an ROI calculator, break-even calculator, LTV...
Code Effects Software is the developer of state-of-the-art business rules engine that combines an incredible performance of rule evaluation with revolutionary web interface, allowing the end-users to author and manage their corporate business rules with no knowledge of programming languages or IT...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using calculate.at and Code Effects. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


I run calculate.at, a free site with 290+ online calculators — mortgage payments, BMI, unit conversions, percentages, that kind of thing. No account system, no analytics pixels chasing you around, no backend at all. Every calculation... - Source: dev.to / 2 months ago
Tracking Code Effects since Jan 2023.
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