ForHosting KIT · Developer Utilities

Dice notation min and max calculator

This dice notation min and max calculator reads a standard dice expression and returns the lowest and highest totals the expression can produce when every die shows a face from one through its number of sides.

● BetaFree · in your browser

Run — free How it works & API

Use it from WebAPIEmailTelegramApp soon

Tabletop RPG damage lines, board-game attack charts, virtual tabletop macros, and homework problems all write rolls as compact strings such as 2d6, 3d8+2, 1d20+1d4−1, or d%. Designers and players need the full reachable band before they debate probabilities or average damage: if the floor is too low or the ceiling too high, the table feels wrong long before anyone cares about the mode. The engine tokenizes NdS dice terms and signed constants, applies the fair-die face model one through sides, and adds each term’s contribution to a global minimum and maximum—no Monte Carlo sampling, no network calls, and no date-dependent shortcuts. Classic checks include 2d6 from two through twelve, 3d6+2 from five through twenty, and a bare d20 from one through twenty. Use it free in the browser for session prep and homebrew balancing, or call the API at $0.002 per successful request when you need reproducible range fixtures in CI, character builders, or teaching demos.

How to use it

Enter your values in the form above. The tool checks them before calculating and shows the result on the same page.

Check your inputs

Use the labels and units shown next to each field. If something is missing or outside the allowed range, the page points to the field to fix.

Use it again or automate it

Use the browser tool for individual checks and the API when you need the same capability in an automated workflow.

What you can do with it

Get an answer now

Enter one set of values and see the result without building a spreadsheet or script.

Compare scenarios

Change one value at a time and rerun the calculation to understand what affects the result.

Automate repeated work

Use the API when the same calculation needs to run inside your product or workflow.

FAQ

How do I use this capability?

Complete the fields above and run it on this page. The form highlights anything that needs attention.

For developers — API access

Everything on this page is available programmatically. This section is for teams who want to wire it into their own systems; everyone else can just use the tool above.

API endpoint

POSThttps://api.kit.forhosting.com/hobby/game-dice-notation-range

Prefer to automate it? One authenticated POST creates the task; the result comes back by webhook or a signed link. The same capability also runs here on the web, by email and from Telegram — and soon from our app too.

Call it from your stack

curl -X POST https://api.kit.forhosting.com/hobby/game-dice-notation-range \
  -H "Authorization: Bearer $KIT_KEY" \
  -H "Content-Type: application/json" \
  -d '{"notation":"2d6+3"}'

const res = await fetch("https://api.kit.forhosting.com/hobby/game-dice-notation-range", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${process.env.KIT_KEY}`,
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    "notation": "2d6+3"
  })
});
const { task_id } = await res.json();

import os, requests

res = requests.post(
    "https://api.kit.forhosting.com/hobby/game-dice-notation-range",
    headers={"Authorization": f"Bearer {os.environ['KIT_KEY']}"},
    json={
    "notation": "2d6+3"
},
)
task_id = res.json()["task_id"]

<?php
$res = file_get_contents("https://api.kit.forhosting.com/hobby/game-dice-notation-range", false, stream_context_create([
  "http" => [
    "method"  => "POST",
    "header"  => "Authorization: Bearer " . getenv("KIT_KEY") . "\r\nContent-Type: application/json",
    "content" => '{"notation":"2d6+3"}',
  ],
]));
$task = json_decode($res, true);

body := bytes.NewBufferString(`{"notation":"2d6+3"}`)
req, _ := http.NewRequest("POST", "https://api.kit.forhosting.com/hobby/game-dice-notation-range", body)
req.Header.Set("Authorization", "Bearer "+os.Getenv("KIT_KEY"))
req.Header.Set("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)

Example request

{
  "notation": "2d6+3"
}

Example response

{
  "task_id": "tsk_a1b2c3d4e5f6a1b2c3d4e5f6",
  "type": "hobby.game_dice_notation_range",
  "status": "queued",
  "_links": {
    "result": "/tasks/tsk_…/result"
  }
}

The API is asynchronous: the call returns a task_id immediately and the result arrives by webhook. Polling is capped at 1 req/s per task.

Pricing

Per request$0.002

Published price — no tokens, no invented credits. A failed task is never charged.

Limits

`max_dice`	100
`max_sides`	1000
`max_notation_len`	200

Errors

HTTP	Code	Meaning
`401`	`unauthorized`	Missing or invalid API key.
`402`	`insufficient_balance`	Your balance doesn't cover the task price.
`404`	`unknown_type`	That task type doesn't exist.
`429`	`rate_limited`	Too many requests. Use the webhook instead of polling.

Read the full KIT documentation →