GPA weighted and Italian 30 e lode
GPA weights grades by credits: grade×credits summed divided by total credits. 30L=31 IT, A=4.0 US. Weighted prevents low-credit elective skew. This calculator is designed for quick, private, offline use in your browser. All formulas run locally and are verified against official sources. You enter the core numbers, see the result instantly, and can check the steps, so you avoid the common mistake of applying a percentage to the wrong base or mixing units. Keep the inputs in the same unit system, verify the rate or factor for your country, and compare the result with a second example to catch typos before you save or file. GPA is not a simple average of grades. Each grade is weighted by credits: multiply grade by credits, sum all products, divide by total credits. A 30L counts as 31 in Italy, an A is 4.0 in US. Mixing 4
TL;DR
- Points = grade×credits per course.
- Formulas: GPA = Σ(grade×credits)/Σcredits | 30L=31
- 30,27,24 credits — GPA 27.0/30
How it works
Points = grade×credits per course. Sum points / sum credits → GPA. Detect scale by grade size, show both. Start with clean inputs, keep the same units, and follow the order the formula shows. The tool does the arithmetic, but you decide the rate, period, or factor. A second example with different numbers shows how the result scales, which is the fastest way to spot a misplaced decimal or a monthly versus annual confusion before you act on the number. GPA is not a simple average of grades. Each grade is weighted by credits: multiply grade by credits, sum all products, divide by total credits. A 30L
The math
30(6cr)27(9cr)24(6cr): points567/21=27.0/30 (3.43/4.0). A4.0(3cr)+B3.0(4cr): (12+12)/7=3.43.
6cr counts double 3cr. Weighted vs plain average.
Examples
30,27,24 credits
- GPA 27.0/30
- 3.43/4.0
A+B
- GPA 3.43
When to use it
✦ University
Degree final grade.
✦ Abroad
Convert IT→US.
⚠ Common mistakes
- Plain average without credits
- 30L as 30 not 31
FAQ (6)
Weighted vs unweighted?
Weighted divides by credits.
Convert 30 to 4.0?
30→4.0 28→3.7 etc, tool shows both.
Do you save the numbers I type for area, volume or conversions?
Not at all. Every conversion — kg to lbs, area, fraction math — runs locally. No form data is posted anywhere. You can convert 1,500 kg to lbs on a shared computer and walk away knowing nothing was logged.
Will it work without internet in class?
Yes — that's why students like it. Load once on Wi-Fi, then fraction, base-converter or standard deviation work offline in class or in an exam hall without signal. It's just math in JavaScript, no server round-trip.
How accurate are the math results?
We use standard definitions (e.g. 1 kg = 2.20462 lbs, BIPM SI) and double-check edge cases via automated tests. For homework or site measurements it's more than enough, but for certified engineering or lab work, cross-check with the primary standard.
Can I share a calculation with a classmate?
Tap 'Share Link' — it puts the inputs in the URL. Your classmate opens it and sees the same 3/4 → 0.75 → 75% breakdown instantly, without retyping.
Sources & References
How this calculator is maintained
This calculator is written and maintained by Davide Coronese, independent developer and founder of CalcTracker.
Methodology: every formula is checked against official publications and validated by an automated test suite before release. Health, tax and finance pages cite the exact sources they rely on.
Found an error? Contact us — verified corrections ship within 24 hours.