Overview
Percentage Increase Calculator is a free online tool that instantly computes percentage changes between two values. It supports both increases and decreases, displaying negative results in red. Users can enter any two of three fields (original value, new value, percentage change) and the third auto-calculates. It is ideal for salary raises, price increases, stock growth, and property value changes.
SiteMd is a website health scanner and SEO audit tool that provides comprehensive monitoring and plain-English reports. It checks uptime, performance, SEO, and security around the clock. Currently in private beta, it offers a free tier for one site and paid plans for professionals and agencies.
Feature Comparison
| Feature | Percentage Increase Calculator | SiteMd |
|---|---|---|
| Primary Function | Calculates percentage increase/decrease between two values | Website health scanner & SEO audit tool |
| Target Audience | General users, employees, investors, homeowners | Website owners, SEO professionals, agencies |
| Input Method | Enter any two of three fields (original, new, percentage) | Paste website URL |
| Output | Instant percentage result with step-by-step formula | Plain-English health report with fixes |
| Automation | Auto-calculates as you type | 24/7 monitoring with alerts |
| Decrease Support | Yes, negative results shown in red | N/A |
| Uptime Monitoring | No | Yes, instant alerts |
| SEO Audit | No | Weekly scan of meta tags, links, rankings |
| Performance Scoring | No | Core Web Vitals scored and explained |
| Security Scan | No | SSL, headers, vulnerabilities checked |
| Reports | Step-by-step formula display | Plain-English reports with step-by-step fixes |
| Pricing | Free | Free tier available; paid plans from $19/mo |
Pricing
Percentage Increase Calculator is completely free. No registration, no payment, no limits. You can use it as many times as you want.
SiteMd offers a free tier that includes 1 website, monthly health reports, basic uptime monitoring, and email notifications. Paid plans start at $19/month for Pro (5 websites, weekly reports, full site diagnosis, smart alerts, security scanning, SEO audits). Team plan is $49/month for 20 websites with daily reports, competitor tracking, API access, and team collaboration. Agency plan is $99/month for unlimited websites with priority support and bulk site management.
Pros and Cons
Percentage Increase Calculator
Pros:
- Instant results with no buttons or waiting
- Handles both increases and decreases automatically
- Three-field input solves for any missing value
- Step-by-step formula display for transparency
- Completely free and no registration needed
Cons:
- Limited to percentage change calculations only
- No monitoring or alerting capabilities
- No integration with other tools or APIs
SiteMd
Pros:
- Comprehensive website health monitoring (uptime, SEO, performance, security)
- Plain-English reports with actionable fixes
- 24/7 monitoring with smart alerts
- Free tier available for one site
- No code changes or DNS records required
Cons:
- Currently in private beta (limited availability)
- Paid plans required for more than one site
- Not a general-purpose calculator; focused on websites
Verdict
Choose Percentage Increase Calculator if you need a quick, free, and accurate tool for calculating percentage changes between any two numbers. It's perfect for salary negotiations, price comparisons, investment returns, and everyday math. Choose SiteMd if you own a website and need ongoing health monitoring, SEO audits, and security scans with plain-English reports. They serve entirely different purposes, so the right choice depends on whether you need a simple math tool or a comprehensive website maintenance solution.
Percentage Increase Calculator
SiteMd