Loading the page...
Preparing tools and content for you. This usually takes a second.
Preparing tools and content for you. This usually takes a second.
Fetching calculator categories and tools for this section.
Free insulin sliding scale calculator for rapid-acting correction doses from current glucose. Choose mg/dL or mmol/L, compare three teaching templates, and see when no insulin should be given for hypoglycemia. This is not your hospital order sheet.
Last updated: April 13, 2026
Need a branded diabetes toolkit for patients? Get a Quote
| Glucose (mg/dL) | Units |
|---|---|
| 70 – 149 | 0 |
| 150 – 199 | 2 |
| 200 – 249 | 4 |
| 250 – 299 | 6 |
| 300 – 349 | 8 |
| 350+ | 10 |
220 mg/dL
Suggested correction: 4 units
Band: 200 – 249 mg/dL
Using the standard template, glucose falls in the 200 – 249 mg/dL row. Many protocols use rapid-acting insulin (e.g. lispro, aspart, glulisine) for correction doses.
Confirm this matches your written order. Do not stack correction doses too closely together; follow your prescribed recheck interval.
Not a medical order
Sliding scales vary by hospital and prescriber. Basal insulin, meal boluses, sick-day rules, pregnancy, and pump therapy are not modeled here. Use only rapid-acting insulin types specified in your own instructions.
Maps glucose bands to units of mealtime/correction insulin—useful for inpatient-style teaching and comparing how aggressive scales differ.
mmol/L values convert with the common ×18 approximation so the same mg/dL bands apply consistently.
Severe and mild low ranges suppress correction insulin and surface safety language instead of a dose.
Flags very high readings for ketone checks, hydration, and clinician contact when appropriate to your diabetes type.
The entire scale stays on screen so learners can see neighboring bands—not just a single output number.
Basal insulin, insulin-to-carb ratios, and pump algorithms are outside this tool—pair with formal diabetes education.
Glucose 220 mg/dL, standard template.
200 – 249 mg/dL
4 units
Rapid-acting correction per template—not your personal order.
Sliding scales rose to popularity in inpatient settings because they are easy to communicate on a nursing flow sheet. Outpatient management for many people with diabetes now emphasizes basal insulin, meal boluses from carbohydrate ratios, and time-in-range from CGM when available. Still, understanding how glucose bands map to correction units helps interpret hospital orders and study questions.
Pair with GMI to A1C for average-glucose context.
Get Custom Calculator for Your PlatformOften lands in the 250–299 mg/dL band → 3 units in this teaching template.
Narrower high bands may place 280 mg/dL in 270–299 → 10 units here—showing why personalized orders matter.
Share with students or patients learning inpatient diabetes care.
Suggested hashtags: #Diabetes #Insulin #SlidingScale #Health #Calculator