Significant Figures & Rounding Checker (LOD/LOQ Reporting Supported)

Suggests recommended digits, rounding, and reporting examples from value, resolution, standard deviation, and rounding rules.

Final reporting should follow your internal, client, or regulatory standards.

Quick samples (click to load)

Recommended reporting

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Enter values

Place- Rundung- Basis- LOD-

Underwriting result delta -

Short rationale

Analysis report (calculation basis)

Input list

Digit decision

Apply rounding

Build formatted value

LOD/LOQ decision

Hinweise

Prioritize your internal, client, or regulatory standards over this tool's suggestions.

Recent calculations

Eingaben

Basic inputs

Value (measurement)

Einheit

Measurement resolution (smallest increment)

Smallest display/read increment

Standard deviation (σ)

Enter when repeatability data is available

Rounding & significant-figure rules

Rundungsregel

Significant digits for uncertainty (σ)

Round σ to 1–2 digits, then align the value to the same place.

Basis for digit selection

LOD/LOQ

Use LOD/LOQ

Display format

Locale

Scientific notation (1.23×10⁻⁴)

Voreinstellungen

Rule preset

Preset-Name

Import JSON

Häufig gestellte Fragen (FAQ)

I need to match a standard.

You can save rule presets. Presets are stored in the browser and can be exported/imported as JSON.

How should I report below LOD?

We show candidate formats such as “<LOD” or “ND.” Follow your standard for LOD/LOQ handling.

What about thousand separators?

We auto-format by browser locale. You can switch to Japan, Europe, or no separators.

Hinweise

This tool provides suggestions based on common rounding/reporting rules.
If your organization/client/regulator has a standard (spec, method, SOP), prioritize it.
LOD/LOQ reporting varies by field and standard, so outputs are shown as candidates.