Skip to main content
Check Your Symptoms
Find A Doctor
Find A Dentist
Health
A-Z
Health A-Z
Health A-Z
Common Conditions
ADD/ADHD
Allergies
Arthritis
Cancer
Coronavirus (COVID-19)
Depression
Diabetes
Eye Health
Heart Disease
Lung Disease
Orthopedics
Pain Management
Sexual Conditions
Skin Problems
Sleep Disorders
View All
Resources
Symptom Checker
WebMD Blogs
Podcasts
Newsletters
WebMD Magazine
Best Hospitals
Find a Doctor
Surgeries and Procedures A-Z
Featured Topics
Slideshow
Signs You Have Already Had COVID
Slideshow
Get Help for Migraine Relief
Drugs &
Supplements
Drugs & Supplements
Drugs & Supplements
Find & Review
Drugs
Supplements
Drug Basics & Safety
Commonly Abused Drugs
Taking Meds When Pregnant
Tools
Manage Your Medications
Pill Identifier
Check for Interactions
Drug Comparison Tool
Featured Topics
Slideshow
Vitamins You Need as You Age
Coronavirus
COVID-19 Vaccines
Living
Healthy
Living Healthy
Living Healthy
Diet, Food & Fitness
Diet & Weight Management
Weight Loss & Obesity
Food & Recipes
Fitness & Exercise
Beauty & Balance
Healthy Beauty
Health & Balance
Sex & Relationships
Oral Care
Living Well
Women's Health
Men's Health
Aging Well
Healthy Sleep
Healthy Teens
Featured Topics
Article
Smart Grocery Shopping When You Have Diabetes
Quiz
Do You Know the Benefits of Walking?
Family &
Pregnancy
Family & Pregnancy
Family & Pregnancy
All About Pregnancy
Getting Pregnant
First Trimester
Second Trimester
Third Trimester
View All
Parenting Guide
Newborn & Baby
Children's Health
Children's Vaccines
View All
Pet Care Essentials
Healthy Cats
Healthy Dogs
View All
Featured Topics
Slideshow
Smart Snacks When You're Pregnant
Slideshow
Surprising Things You Didn't Know About Dogs and Cats
News &
Experts
News & Experts
News & Experts
Health News
Fat Growing Around Muscles Could Be a Silent Killer
Casual Pot Use Harmful to Teens
Chronic Pain More Common Than Many Top Illnesses
Vitamin D Supplements May Help Ease Long COVID
Black Americans Face Much Higher Rates of Early Death
Experts & Community
Support Groups
Blogs
Webinars
News Center
New Book: Take Control of Your Heart Disease Risk
Featured Topics
WebMD Editorial Special
Rare Diseases: Are Solutions Already at Our Fingertips?
Get Our Newsletters
Health News and Information, Delivered to Your Inbox
Mobile Apps
Subscriptions
Sign In
Subscribe
My Profile
My Tools
My WebMD Pages
My Account
Sign Out
Top 12 Topics
Coronavirus (COVID-19)
CBD Oil
Keto Diet
Hepatitis C
Diabetes Warning Signs
Rheumatoid Arthritis
Morning-After Pill
Breast Cancer Screening
Psoriatic Arthritis Symptoms
Heart Failure
Multiple Myeloma
Types of Crohn's Disease
Medical Dictionary
Kilometer
[ki-lom-i-ter]
1,000 meters -- or 0.62 miles -- in the metric system.
Health Solutions
Penis Curved When Erect?
Could I have CAD?
Treat Bent Fingers
Treat HR+, HER2- MBC
Tired of Dandruff?
Benefits of CBD
Rethink MS Treatment
AFib-Related Strokes
Risk of a Future DVT/PE
Is My Penis Normal?
Relapsing MS Options
Liver Transplants Save Lives
Finance Plastic Surgery
Bent Finger Causes
Living With Psoriasis?
Missing Teeth?
More from WebMD
5 Tips to Help With Relapsing MS
How to Thrive With Narcolepsy
Relief for Blocked Hair Follicles
Psoriatic Arthritis and Your Sleep
What Psoriasis Feels Like
First Psoriatic Arthritis Flare
Talking to Your Doctor About RA
Crohn's: A 'Full-Body' Disease
Avoiding Crohn’s Flares
Health Benefits of Hemp Seed Oil
Live Better With Psoriatic Disease
Types of B-Cell Therapy for MS
5 Health Benefits of Hemp
Why Prostate Cancer Spreads
Living with Advanced Breast Cancer
Where Breast Cancer Spreads