Blood Sugar Log: Free Printable Template (+ App Way)
Reviewed by the GlucoLog medical content team, July 2026.
Yes — here is a free printable blood sugar log you can use right now. Print the 7-day table below, fill in your readings by hand, and bring it to your next appointment. For each entry, record the date, time, your glucose reading, the meal context (fasting, before meal, after meal, or bedtime), and any relevant notes such as food, activity, medication, or how you felt. If you prefer to skip the paper, GlucoLog covers the same fields digitally and builds charts automatically.
Free Printable Blood Sugar Log (7-Day Template)
Print the table below and fill it in with a pen. Each row is one reading — you may have several rows per day depending on how often your care team asks you to check. Blank rows are intentional so you can write in your own dates and times.
How to print this page: Press Ctrl+P (Windows / Linux) or ⌘+P (Mac), then choose your printer or select Save as PDF. The table will print cleanly on a standard letter or A4 sheet.
| Date | Time | Reading (mg/dL or mmol/L) | Meal Context | Notes (food, activity, meds, stress…) |
|---|---|---|---|---|
| e.g. 07/20 | e.g. 7:30 am | e.g. 118 mg/dL | e.g. Fasting | e.g. Slept well, no exercise yet |
Tip: print two copies — one to fill in and one as a spare blank.
What to Record in Your Blood Sugar Log
A useful log entry has five fields:
- Date — the calendar date of the reading.
- Time — exact time matters because glucose naturally rises and falls through the day.
- Reading — your glucose value in mg/dL or mmol/L, exactly as your meter shows it. Record the unit once at the top of your log so you don't have to repeat it every row.
- Meal context — this is one of the four standard tags: Fasting (first thing in the morning, before eating or drinking anything except water), Before meal (just before you eat), After meal (typically 1–2 hours after the start of a meal), or Bedtime. Consistent tagging is what lets your care team spot patterns quickly.
- Notes — anything that might explain an unexpected reading: what you ate, exercise, a missed dose, illness, stress, poor sleep, or just a note that the reading looked higher than usual. Brief notes are fine — even a single word like “pizza” or “gym” is helpful.
If you ever see a reading that feels very low or very high, or if you have symptoms that concern you, contact your care team or seek urgent medical attention. A log is for pattern-tracking, not for emergency decisions.
How Often Should You Log?
There is no single answer that fits everyone. Your diabetes care team will set specific testing times based on your type of diabetes, your medications, and your treatment goals. Common check-in points include fasting (upon waking), before each main meal, 1–2 hours after meals, and at bedtime — but your actual schedule may be more or less frequent than this.
People on insulin often test more frequently — sometimes 4–7 times per day or more. People managing type 2 diabetes with lifestyle changes alone may test less often. If you are unsure how often to check, ask your doctor or diabetes educator at your next visit. More data is generally more useful when something is changing (a new medication, a diet change, an illness), and less critical when things are stable.
For a broader discussion, see our guide on how often to check blood sugar.
ADA General Glucose Targets (Reference)
The American Diabetes Association publishes general glycemic targets for many adults with diabetes. These are reference figures only — your personal targets may be different. Always confirm your targets with your care team.
| Timing | General target (mg/dL) | General target (mmol/L) |
|---|---|---|
| Fasting / Before meals | 80–130 mg/dL | 4.4–7.2 mmol/L |
| Peak 1–2 hours after meal | Under 180 mg/dL | Under 10.0 mmol/L |
Individual targets vary — your care team sets yours. See our deeper look at normal blood sugar levels and fasting blood sugar normal range for more context on what these numbers mean.
Making Sense of Your Log
A completed log is most valuable when you review it with your doctor or diabetes educator, but you can start spotting patterns yourself:
- Morning highs (dawn phenomenon): Consistently elevated fasting readings — before you eat anything — can indicate the liver is releasing glucose overnight. Your care team can suggest adjustments.
- Post-meal spikes: If your after-meal readings are consistently high, compare your notes — certain foods, portion sizes, or timing may be the culprit. See our guide on blood sugar after eating for a fuller picture.
- Day-to-day variation: A single high or low reading is rarely cause for alarm on its own. A week of consistent data tells a much clearer story than any single point.
- Preparing for your appointment: Bring your log — paper or digital — to every visit. Your care team can only adjust your plan based on real data. We have a full walkthrough on how to prepare for your diabetes doctor visit if you want to make the most of your appointment time.
The App Way: A Digital Blood Sugar Log
GlucoLog is a digital blood sugar logging app — not a glucometer or CGM, so it does not measure glucose itself. You enter your readings manually using a large numpad, pick the meal context tag (Fasting, Before meal, After meal, Bedtime), and add a note if you like. The whole entry takes a few seconds.
Once you have a few days of data, GlucoLog builds automatic charts — 7-day trends, longer-range views, and time-in-range breakdowns. It also calculates an estimated A1C from your logged averages; this is a mathematical estimate based on your entries, not a lab result, so treat it as a rough orientation rather than a clinical value. When you are ready for your appointment, GlucoLog can generate a PDF report or CSV export to share with your doctor — covering the same information a paper log would, without the handwriting. See the guide on how to track blood sugar and how to share your report with your doctor for step-by-step instructions.
Frequently Asked Questions
How do I make a blood sugar log sheet?
Draw or type a table with five columns — Date, Time, Reading, Meal Context, and Notes — then print as many rows as you need for the week. That is all a blood sugar log sheet requires. The printable template at the top of this page does exactly that; just press Ctrl+P or ⌘+P to print it. If you want a reusable digital version, a logging app like GlucoLog stores the same fields automatically each time you enter a reading.
What should a blood sugar log include?
At minimum: the date, the time, and the reading value (with the unit — mg/dL or mmol/L). Adding a meal context tag (fasting / before meal / after meal / bedtime) and brief notes dramatically increases the log's usefulness. Notes do not need to be long — a few words about what you ate, whether you exercised, or whether you felt unwell are enough to help your care team interpret a surprising number.
Is a paper log or an app better for tracking blood sugar?
Both work. Paper is reliable, requires no battery, and some people find it easier to stay consistent with a physical habit. An app makes data entry faster, eliminates handwriting errors, does the pattern-finding for you, and makes it simple to share a clean report with your doctor. The best choice is whichever one you will actually use consistently — incomplete data in any format is less useful than consistent data in either. Some people keep a paper backup during travel and sync to an app at home.
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