ForHosting KIT · Developer Utilities

Blood glucose converter

This blood glucose unit converter turns a numeric glucose concentration from milligrams per deciliter into millimoles per liter or the reverse, and returns the converted magnitude with canonical unit labels.

● BetaFree · in your browser

Run — free How it works & API

Use it from WebAPIEmailTelegramApp soon

The only conversion factor used is the fixed clinical constant 18.0182: one millimole per liter equals 18.0182 milligrams per deciliter, so milligrams per deciliter divide by that factor to become millimoles per liter, and millimoles per liter multiply by it to become milligrams per deciliter. Everyday aliases such as mg/dL, mg/dl, mmol/L, mmol/l, and mmol are accepted so lab printouts, meter exports, and spreadsheet cells can share one contract. Conversion always bridges through milligrams per deciliter with no network calls, no sampling, and no date-dependent shortcuts. Typical checks include one hundred milligrams per deciliter to millimoles per liter and five point five millimoles per liter back to milligrams per deciliter. Use it free in the browser for homework, travel between unit systems, and data cleanup, or call the API at $0.002 per successful request when you need reproducible glucose unit fixtures in CI, health-tech pipelines, or product catalogs.

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

What does the blood glucose converter cost?

It is free in your browser on this page. Through the API a successful request costs $0.002; invalid inputs are not charged.

Which blood glucose units are supported?

Milligrams per deciliter (mg_dl, aliases mg/dL, mg/dl, mgdl) and millimoles per liter (mmol_l, aliases mmol/L, mmol/l, mmol).

What conversion factor is used?

The fixed clinical factor 18.0182: 1 mmol/L = 18.0182 mg/dL. mg/dL ÷ 18.0182 = mmol/L; mmol/L × 18.0182 = mg/dL.

What happens if I send a negative value?

The request fails with invalid_input. Blood glucose concentration cannot be negative; zero is allowed and converts to zero.

Does this tool interpret clinical ranges or diagnose diabetes?

No. It only converts units between mg/dL and mmol/L. It does not provide medical advice, A1C conversion, or treatment recommendations.

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/conv/blood-glucose

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/conv/blood-glucose \
  -H "Authorization: Bearer $KIT_KEY" \
  -H "Content-Type: application/json" \
  -d '{"value":100,"from":"mg_dl","to":"mmol_l"}'

const res = await fetch("https://api.kit.forhosting.com/conv/blood-glucose", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${process.env.KIT_KEY}`,
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    "value": 100,
    "from": "mg_dl",
    "to": "mmol_l"
  })
});
const { task_id } = await res.json();

import os, requests

res = requests.post(
    "https://api.kit.forhosting.com/conv/blood-glucose",
    headers={"Authorization": f"Bearer {os.environ['KIT_KEY']}"},
    json={
    "value": 100,
    "from": "mg_dl",
    "to": "mmol_l"
},
)
task_id = res.json()["task_id"]

<?php
$res = file_get_contents("https://api.kit.forhosting.com/conv/blood-glucose", false, stream_context_create([
  "http" => [
    "method"  => "POST",
    "header"  => "Authorization: Bearer " . getenv("KIT_KEY") . "\r\nContent-Type: application/json",
    "content" => '{"value":100,"from":"mg_dl","to":"mmol_l"}',
  ],
]));
$task = json_decode($res, true);

body := bytes.NewBufferString(`{"value":100,"from":"mg_dl","to":"mmol_l"}`)
req, _ := http.NewRequest("POST", "https://api.kit.forhosting.com/conv/blood-glucose", body)
req.Header.Set("Authorization", "Bearer "+os.Getenv("KIT_KEY"))
req.Header.Set("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)

Example request

{
  "value": 100,
  "from": "mg_dl",
  "to": "mmol_l"
}

Example response

{
  "task_id": "tsk_a1b2c3d4e5f6a1b2c3d4e5f6",
  "type": "conv.blood_glucose",
  "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_abs_value 1000000000000

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 →

Run — free