RuneScape Karamja Hard Diaries Profit Calculator

Example Data Table

Scenario	Trips/Day	Days	Gems/Trip	Avg Gem Value	Travel Minutes	Supply Cost/Trip	Effective Profit
Without Diary	6	30	22	1,450 gp	7.0	850 gp	4,854,000 gp
With Hard Diary	6	30	26	1,450 gp	3.5	850 gp	6,265,500 gp
Diary Advantage	Higher output plus lower time cost						1,411,500 gp

Update the gem value and your gp-per-hour estimate before trusting any final decision.

Formula Used

1. Trips in Period = Trips per Day × Days

2. Revenue = Trips in Period × Gems per Trip × Average Gem Value

3. Supply Cost = Trips in Period × Supply Cost per Trip

4. Time Cost = Trips in Period × (Travel Minutes ÷ 60) × gp per Hour

5. Effective Profit = Revenue − Supply Cost − Time Cost

6. Diary Advantage = Effective Profit With Diary − Effective Profit Without Diary

This setup lets you price convenience, faster routing, and better mining access inside one finance-focused estimate.

How to Use This Calculator

Enter how many mining trips you expect each day.
Choose how many days you want to model.
Estimate your average gem value using your preferred market snapshot.
Enter expected gems per trip without and with diary efficiency.
Add your supply cost for each run.
Estimate travel minutes for both scenarios.
Assign a gp-per-hour value to your time.
Press calculate and review the result cards, graph, and exports.

FAQs

1. What does this calculator measure?

It estimates the economic difference between a baseline Karamja gem route and a route improved by hard diary access. It combines gem revenue, supply costs, and the value of time saved.

2. Why compare without and with diary scenarios?

Hard diary rewards mostly improve access and convenience. Comparing two scenarios shows whether those conveniences create meaningful profit once you value time and route efficiency.

3. How should I choose average gem value?

Use a weighted average based on the gems you usually mine or sell. If market prices change, refresh the value so your estimate stays realistic.

4. What should I include in supply cost per trip?

Include teleport costs, food, potions, repair costs, and any other repeat expense tied to one run. Skip one-time account costs because this calculator focuses on repeat route profit.

5. Why does the calculator value saved time?

In-game time has opportunity cost. If faster travel lets you complete better moneymakers elsewhere, the time saved has a real gp value worth counting.

6. Can I use this for short sessions?

Yes. Set trips per day and days to match your smaller plan. The calculator works for one day, one week, or longer farming windows.

7. Does this include exact market prices automatically?

No. It is intentionally manual so you can plug in current prices from your preferred source. That keeps the page flexible when markets change.

8. Which result matters most?

The diary advantage is usually the best summary. It shows how much extra effective profit your hard diary route creates over the same period.