Is C Peptide 1.6 normal, high or low? What does C Peptide level 1.6 mean?

📅 Medical Review Date: May 26, 2026

Your C Peptide level of 1.6 is a Normal C Peptide level.

Normal C Peptide levels may indicate underlying health problems. The normal range is typically between 1.1 ng/mL and 4.4 ng/mL. If your levels are outside this range, it's important to speak with a healthcare provider. Consulting a doctor is recommended to determine the cause and appropriate next steps.

The normal C Peptide range for men is :1.1 - 4.4 ng/mL

Ideal values of C Peptide depending on age (male) :

Age	Ideal C Peptide value
<5 years	1.118
5-10 years	1.136
10-15 years	1.154
15-20 years	1.172
20-25 years	1.191
25-30 years	1.21
30-35 years	1.229
35-40 years	1.249
40-45 years	1.269
45-50 years	1.289
50-55 years	1.31
55-60 years	1.331
60-70 years	1.352
70-80 years	1.374
80-90 years	1.396
90-100 years	1.418
>100 years	1.441

*Ideal values are calculated based on our database of patient records

Get Advice via Email : Send us your blood test report, and our C Peptide experts will review it. You'll receive a detailed analysis and personalized treatment guidance via email within 12 hours. If you have additional blood test results besides C Peptide, please include those too—an accurate diagnosis often requires a full view of all abnormalities. Upload blood test report now

1,51,150

Total number of patients treated

A video message on the treatment of your normal C Peptide level

If you want your blood test report to be interpreted by C Peptide specialist, you can upload your report. Our C Peptide expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours.Upload blood test report now

Normal range of C Peptide found among women :1.1-4.4 ng/mL

Ideal values of C Peptide depending on age (female) :

Age	Ideal C Peptide value
<5 years	1.118
5-10 years	1.136
10-15 years	1.155
15-20 years	1.174
20-25 years	1.193
25-30 years	1.213
30-35 years	1.233
35-40 years	1.253
40-45 years	1.274
45-50 years	1.295
50-55 years	1.316
55-60 years	1.338
60-70 years	1.36
70-80 years	1.382
80-90 years	1.405
90-100 years	1.428
>100 years	1.452

If you take a C Peptide blood test and the results are not in the normal range (1.1-4.4 ng/mL), your physician may recommend more tests to figure out the problem. You might also get this test if your physician thinks you have some other disease.

This page was viewed the most from these cities in the last 30 days:

• Haraucourt, Ardennes
• Lalariya
• Killeagh
• La Boissière-sur-Èvre
• Konidela
• Kangpokpi
• Iizaka, Fukushima
• Jadavpur
• Le Cercueil
• Kamalpur, Punjab
• Himayatnagar, Telangana
• Jiedong District
• Hunterganj
• Jangalpara
• Kabanali
• Kénédougou Kingdom
• Les Églises-d'Argenteuil
• Kala Amb
• Jas, Loire
• Lachelle
• Kodibail
• Kassena-Nankana District
• Laas, South Tyrol
• Kingdom of Luang Phrabang
• Kfar Shamai
• Kandi Khedi
• Khab
• Jurien Island
• Jargeau
• Khambhat
• Le Plessis-l'Évêque
• La Trinité-de-Thouberville
• Khalor
• La Mailleraye-sur-Seine
• Hulikeri
• Juillé, Sarthe
• Labergement-Foigney
• Hostiaz
• Kurumpoondi
• Khalor
• Kalavai puthur
• Gondeville
• Kasamalagi
• Inarzo
• Les Deux-Fays
• Gundrevula
• Genga, Marche
• Lanslebourg-Mont-Cenis
• Kranti (Vidhan Sabha constituency)
• Légna
• Hidden Hills, California
• Goudourville
• Kankhal
• Labastide-Savès
• Gulbarga district
• Gerbamont
• Jath State
• Joué-sur-Erdre
• Le Creusot
• Laitumkhrah
• Hemalkasa
• Le Petit-Quevilly
• La Chapelle-du-Lou
• Laxmi Nagar (Delhi)
• Landévant
• Le Pasquier
• Isle-et-Bardais
• Lakkidam
• Giberville
• Independence, Utah
• Greensboro, Pennsylvania
• Kalleli
• Kutch Bustard Sanctuary
• High Point, Hernando County, Florida
• Kothurne
• Gené, Maine-et-Loire
• Gurupura
• Hanches
• Hobby Rocks
• La Jaille-Yvon
• La Brède
• Guargualé
• Jhugian Bandu
• Héric
• Hasvik
• Jainpur, Sultanpur Lodhi
• Inwood, Manhattan
• Le Vernet, Alpes-de-Haute-Provence
• General Mariano Alvarez
• Gazzada Schianno
• Lakkidi-Perur-II
• Kaliyakkavilai
• Le Tourneur
• Ibigny
• Honnapur
• Hiroo, Hokkaido
• Leffe, Lombardy
• Kristianstad County
• Kokkothamangalam
• Les Lèches
• Indre-et-Loire
• Katni copper-plate of Jayanātha
• Halasinakatte
• Ganado, Texas
• Glanon
• Harangul
• Kalichanadukkam
• Gudani
• Gau Berlin
• Gaverina Terme
• La Trinitat
• Genouilly, Cher
• Le Val
• Le Thou
• Kethreddipalle
• Khadana bulandshahr
• Gireum-dong
• Ghanpur (Station)
• Goraguddi
• Generville
• Habsburg-occupied Serbia (1788–92)
• Le Hommet-d'Arthenay
• Jhanji
• Les Petites-Loges
• Giardini Naxos
• Iffendic
• Harsud
• Les Places
• Kachholi
• Langrune-sur-Mer
• Hainan Tibetan Autonomous Prefecture
• Kuiu Island
• Garkha (Vidhan Sabha constituency)
• Hauterive-la-Fresse
• Jinja District
• Kakar Kalan
• Groscavallo
• Knapp v Knapp
• Irish Aviation Authority
• History of Faizabad
• Geography of Saint Pierre and Miquelon
• Gugark
• Le Ployron
• Lanchères
• Japal
• Lesina, Apulia
• Levice, Piedmont
• Gambhiraopet
• Harreberg
• Lassales

How the C Peptide Test Is Done :

When your doctor orders a C Peptide test, it involves a straightforward blood draw to measure your C Peptide levels. A pathologist or lab technician will take a small sample of blood from a vein using a needle. Your C Peptide test results are usually available within a few hours.

Medical References

• MedlinePlus – C-Peptide Test
• Cleveland Clinic – C-Peptide Test: What It Is, Purpose, Procedure & Results
• WebMD – What Is a C-Peptide Test?
• NIH – C-peptide in diabetes diagnosis and management