A free printable blood glucose log sheet: one week per page, a row per day, columns for before and after each meal, bedtime, overnight and notes. Choose mg/dL (US Letter) or mmol/L (A4), print as many copies as you need, and take the sheets to your next appointment. No sign-up, no email.
One page is one week. Landscape, black and white friendly, prints on any home printer.
What is on the log sheet
- Seven day rows, Monday to Sunday, each with a space for the date.
- Before and after columns for breakfast, lunch and dinner, plus bedtime and overnight, so any checking schedule fits. Leave the slots you do not use blank.
- A wide notes column for food, activity, illness, stress and how you felt, the context that makes a number explainable.
- A line at the top for your name, the week and the target range your care team gave you, with the general ADA targets printed underneath as a reference.
- No insulin or medication dose column. Sugar Sense is dose-free by design, and your care team decides what dose records they want and how.
How to do a blood sugar log
Write each reading down right away, in the slot that matches when you checked. Memory at the end of the day rounds numbers and drops the awkward ones. If a reading falls outside the usual slots, a 3 am check or a value before exercise, put it in the overnight or notes column with the time.
Add the context while it is fresh: what you ate and roughly how much, activity, a late night, a cold, a stressful day, symptoms of a low. Two identical numbers with different stories mean different things, and the story is what your care team reads.
Bring the sheets to appointments. The American Diabetes Association calls logging your results vital: a run of days shows how your body responds to your care plan in a way a single reading, or a single A1C, cannot. How often to check is a decision for you and your care team; the ADA advises talking to your doctor about whether and when to check, and checks matter most for people who use insulin, during pregnancy and whenever treatment changes.
Reading the numbers
The sheet prints the general targets the American Diabetes Association gives for many nonpregnant adults with diabetes: 80 to 130 mg/dL (4.4 to 7.2 mmol/L) before a meal and under 180 mg/dL (10.0 mmol/L) one to two hours after the start of a meal. They are a reference, not your prescription: targets are individual, and the range your care team wrote in the box at the top of the sheet is the one that applies to you. Need to compare a reading in the other unit? Use the blood sugar converter.
One pattern is worth circling on paper as you go: readings below 70 mg/dL (3.9 mmol/L). Note the time, what you did about it and how long it took to come up, and tell your care team about any low that surprised you, especially overnight.
Or let Sugar Sense log it for you
If you wear a FreeStyle Libre, Dexcom or Nightscout-connected CGM, Sugar Sense records every reading automatically and keeps a free LogBook next to them: meals with a photo or a carb estimate, notes, medications, context tags such as sick or stress, and manual readings for anyone who checks with a meter. Each entry freezes the glucose and trend arrow at that moment, so the log never drifts. The same data feeds your time in range and GMI, a CSV export for your care team is free, and a family member in your Care Circle can see the readings too.
Paper still has its place: a school bag, a bedside table, a grandparent who checks with a meter. That is what this sheet is for.
Frequently asked questions
Can you provide a simple blood sugar log?
Yes, that is what this page is: a one-page weekly blood glucose log you can print for free, with a row per day and columns for before and after each meal, bedtime, overnight and notes. Choose the mg/dL version (US Letter) or the mmol/L version (A4) above; there is no sign-up and no email.
How do I do a blood sugar log?
Write down every reading with the time and what was going on around it: before or after a meal, what you ate, activity, illness, stress, and how you felt. Do it right away rather than from memory at the end of the day. Take the sheet to appointments: the American Diabetes Association calls logging your results vital, because a log shows your care team how your body responds to your care plan in a way a single reading cannot.
How often should I check my blood sugar?
That depends on your treatment and is a decision for you and your care team; the ADA advises talking to your doctor about whether and when to check, with more frequent checks mattering most for people who use insulin, during pregnancy and when treatment changes. The sheet has slots for before and after each meal, bedtime and overnight so any schedule fits; leave the ones you do not use blank.
Can I get a free diabetic logbook by mail?
Some meter manufacturers, pharmacies and diabetes clinics hand out printed logbooks, and it is worth asking at your next visit. The fastest option is to print this sheet at home or at a library: one page is one week, so seven pages cover most of a quarter between appointments.
Should I write my insulin doses on the log?
This sheet deliberately has no dose column: Sugar Sense is dose-free by design, and the log is about readings and context. If your care team wants medication or insulin records alongside the readings, they will give you their own sheet or ask you to use the notes column, and their instructions come first.
Is there a mmol/L version?
Yes. The mmol/L sheet is laid out for A4 paper and carries the general ADA targets converted to mmol/L (4.4 to 7.2 before meals, under 10.0 after). The mg/dL sheet is laid out for US Letter. Need to compare a number in the other unit? Use the blood sugar converter.
More free tools
- Blood Sugar Converter: mmol/L to mg/dL and Back
- A1C Calculator: Convert A1C to Average Glucose
- Time in Range Calculator
- GMI to A1C Calculator: Estimate A1C from Your CGM Average
- Fructosamine to A1C Calculator
This tool is for education only. It is not medical advice, it does not replace laboratory testing, and it must never be used for insulin dosing or other treatment decisions. Always work with your healthcare team. See our full medical disclaimer.
