3 Grams AI Weight Estimator
What is 3 Grams AI Weight Estimator?
3 Grams AI is an AI-powered app that allows you to identify an object from an image and give you estimations for particulars like weight, dimensions and composition.
Get the weight of objects in many different units. Improve accuracy by using reference objects of known / standard fixed size and weight, like a UK £2 coin or a credit card.
- Take a photo or choose one from your gallery, optionally add any known object details or a known reference object.
- Press Analyse Object and wait a few seconds while our AI analyses, identifies and shows you an approximate weight estimate in your chosen unit, such as grams.
- Premium users can get additional object information such as estimation of dimensions.
Available on Android, iPhone, iPad & Web (coming soon!). Scroll down for links.
Features & Info:
3 Grams AI estimates object weight, dimensions and composition from photos using advanced AI technology. Some details are available only for Premium users.
Simply take a photo or select one from your gallery, optionally add object details or a reference object (like a coin or card), and receive an approximate weight estimate in your chosen unit – from milligrams to tons.
Perfect for everyday curiosity:
• Estimate food portions and ingredients
• Check parcel weights before shipping
• Quick measurements for DIY projects
• Reference unknown items around the house
• Identification of Objects
Key features:
• AI-powered photo analysis in a few seconds
• Multiple weight units (mg, g, kg, oz, lb, etc.)
• Use Reference objects for better accuracy
• Add Custom reference objects, you define
• Save analysis history locally on your device
• Rate and report results to help improve the app
Important: 3 Grams AI provides approximate estimates only. Results depend on image quality, lighting, angle, focus, object clarity, and the reference/reference details provided.
For best results:
• Keep the target object centered and well-lit
• Use clear reference objects when possible
• Follow the in-app photo guidelines
3 Grams AI is not a certified scale and should not be used for medical, legal, commercial shipping, trade, or any accuracy-critical purposes. Always verify important measurements with proper equipment.
FREE PLAN:
• New users receive a free welcome credit allowance to get started.
• After free credits are used, you can earn more credits by watching optional rewarded ads, or upgrade to Premium.
PREMIUM PLANS (Monthly subscription):
• Plus
• Ultra
• Elite
Each Plan gives you a fixed amount of credits, reset every month.

PREMIUM FEATURES:
• Credit balance topped every month.
• High Accuracy Mode – Improved AI analysis and better object detection
• Advanced object details, including estimated dimensions and composition
• Fewer restrictions
• More weight estimations per day
• Less waiting time between estimations
• No interstitial ads
• No video ads
• Unlimited history storage for past weight estimations
RATE OR REPORT:
You can rate each weight estimation from 1 to 5 stars. If a result is inaccurate or poor, you can submit a report by choosing 1 star and optionally attach a small thumbnail image of the photo used, to help us investigate and improve the app.
PRIVACY FIRST DESIGN:
No accounts required. History stays on your device.
Why Choose 3 Grams by RizBit?
RizBit has been developing apps and software for over 15 years
3 Grams series is established for over 5 years
Our Digital Scales App has had over 500K global installs
We try and test our apps
Video demonstrations
You can download our app directly or use in web browser
- We use the latest AI model for best measurments
Download / Launch Free App
Terms & Usage
By using 3 Grams AI Weight Estimator, you agree to our Terms of Use and Privacy Policy.
If you find 3 Grams AI Weight Estimator helpful, please share it and follow us on social media to support continued development.




