SaaS Plan Upgrade Calculator

Quickly calculate prorated costs when upgrading your SaaS subscription. Our calculator helps both customers and businesses understand exactly what they'll pay when switching to a higher-tier plan mid-billing cycle.

How It Works

  1. 1.Enter your current plan details (name and monthly price)
  2. 2.Add your new plan information (name and monthly price)
  3. 3.Input your last billing date and when you want to upgrade
  4. 4.Get instant calculations for your prorated costs

What You'll See

Credit Amount

The refund you'll receive for your unused days on the current plan

Prorated Cost

What you'll pay for the remaining days on the new plan

Total Due

The final amount to pay (new prorated cost minus your credit)

Why Use This Calculator?

  • Transparent pricing: Understand exactly what you'll pay before upgrading
  • Fair billing: Get credit for unused time on your current plan
  • Budget planning: Forecast the immediate cost of upgrading your subscription

Current Plan

$

New Plan

$

Pro Tip: Best Time to Upgrade

While you can upgrade at any time, upgrading at the start of your billing cycle simplifies calculations and helps you make the most of your new features from day one. However, our calculator makes it easy to understand costs regardless of when you choose to upgrade.