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Rice grain analysis from a phone photo

Measure every grain in 30 seconds

A real rice sample photographed on the calibration sheet, every grain outlined and labelled with its measured length

Free to try, no account needed.

±0.1 mm

accuracy vs. manual measurement, validated across hundreds of samples. How we measure

~30 s

from photo to finished report

1 photo

per sample. No lab equipment. Any modern smartphone camera works.

Grades to
  • FCI
  • ISO 7301:2021
  • Basmati domestic
  • Basmati export
  • Your buyer's own spec
See the standards →

From sample to report in three steps

A printed sheet and the phone in your pocket.

  1. The RiceCaliper calibration sheet
    Detail: the printed ruler, first 60 mmThe 160 mm ruler printed on every sheet
    1

    Print the sheet

    Print at 100% on plain A4. Check the ruler.

  2. A photographed rice sample spread on the RiceCaliper calibration sheet
    2

    Spread and photograph

    One layer, grains not touching. One photo from above.

  3. A RiceCaliper report card showing average length, L/W ratio and broken percentage
    3

    Get the report

    Save it, print it, or send it on WhatsApp.

    Open the full sample report →
Sample data
A RiceCaliper report on a phone, checked against a buyer specification 1 2 3 4

What's in every report

Numbers you can hand to a buyer

  1. 1A report number that opens on ricecaliper.in
  2. 2Graded to FCI, ISO 7301, Basmati or your own spec
  3. 3Typed details clearly marked as entered by the sender
  4. 4Pass or fail against your buyer's limits

Every grain measured: length, width, L/W ratio and area.

Accuracy

±0.1mm

accuracy vs. manual measurement, validated across hundreds of samples

Why the numbers hold up

  • Exact scale from the sheet

    Corner markers correct for camera angle and distance.

  • A ruler you can check

    Every sheet has a printed 160 mm ruler.

  • Every grain, not an average

    Each grain is measured on its own, not estimated from a few.

How we measure →

Where it fits in the rice trade

One measurement at every hand-off.

Common questions

Something else? Ask us on WhatsApp or email.

More in Help →
Do I need special equipment?
No. Print the sheet on any A4 printer at 100% and use your phone camera.
Which phones work?
Any modern smartphone camera works.
Is it free to try?
Yes. One scan a day without an account. A free account adds 10 bonus scans and 3 scans a day.
Can my buyer check the report?
Yes. Send the report link. It opens on ricecaliper.in without signing up.
Does it replace a lab test?
It replaces hand-counting, manual vernier measurements and expensive scanner-based software.
Does it work without internet?
Yes. Scans wait on your phone and upload automatically later.

Scan your first sample free

No account needed. Print the sheet, take one photo, get the report.

Multi scan

Use a fresh, random handful from the same sample for each photo.

    Scan your sample

    Advanced settings

    Cutoffs

    %

    Grains shorter than this % of a whole grain count as broken. 75% is standard.

    %

    Broken grains shorter than this % count as small broken. Must stay below the cutoff above.

    Sample details

    Shown on the report as entered by user. Not measured.