What should I do if my urine is deep amber or brown?

Deep amber or brown (Level 7-8) indicates severe dehydration. You should immediately begin sipping electrolyte-rich rehydration fluids or Oral Rehydration Salts (ORS). If you feel dizzy, nauseous, or experience muscle cramps, seek medical advice.

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Hydration Tool

Urine Hydration Tracker

A visual dehydration self-assessment. Select your urine color and log symptoms to get a clinical-grade volumetric fluid replacement recommendation.

Hydration Visual Input

Select the color that matches your urine and check any current physiological symptoms.

Urine Color (Armstrong Scale)

Optimal (Clear)Severely Dehydrated (Tea/Brown)

Body Weight (kg)

Weight unit

Dehydration Assessment

Physiological diagnostics matching clinical urine specific gravity.

- 250ml- 200ml- 150ml- 100ml- 50ml

Hydration Level

mild Dehydration

Diagnostic Score: 1 / 14 | Urine Color: Light Yellow

Fluid Volumetric Deficit

700 ml

Ounces Equivalent

23.7 fl oz

Rehydration Protocol

Sip 700ml of pure water over the next 60 minutes. Avoid guzzling to ensure cell absorption.

The Armstrong Urine Color Hydration Scale

While fluid calculators estimate baseline requirements, monitoring urine color provides a direct physiological indicator of your body's current hydration status. The clinical 8-scale chart was developed by exercise physiologist Dr. Lawrence E. Armstrong to offer a non-invasive, validated field test for tracking hydration.

Urine Specific Gravity (USG) & Hydration Status

Urine color changes based on the concentration of urobillin (a byproduct of hemoglobin breakdown). When your body is dehydrated:

The kidneys conserve water by concentrating urine.
Urine Specific Gravity (USG) increases ($> 1.020$).
The color deepens from pale straw yellow (Level 1-2) to dark amber or brown (Level 7-8).

The Armstrong Scale Interpretations

| Color Level | Hydration Status | Action Required | | --- | --- | --- | | Level 1–2 | Optimal (Hydrated) | Maintain current fluid intake. | | Level 3–4 | Mildly Dehydrated | Sip 250ml–500ml water immediately. | | Level 5–6 | Moderately Dehydrated | Drink 500ml–1000ml fluids; consider electrolytes. | | Level 7–8 | Severely Dehydrated | Urgent rehydration with ORS; seek help if dizzy. |

Frequently Asked Questions

What urine color indicates dehydration?

According to the clinical Armstrong 8-Scale, colors from Level 3 (light yellow) to Level 8 (dark tea/brown) indicate mild to severe dehydration. Levels 1 and 2 (clear to pale straw yellow) represent optimal hydration.

Can vitamins change my urine color?

Yes. B-complex vitamins (especially riboflavin / B2) can turn urine a bright, neon yellow. This does not indicate dehydration. In such cases, rely on thirst cues and physiological symptoms.

Why do I need electrolytes when moderately dehydrated?

Drinking massive volumes of plain water when dehydrated can dilute blood sodium, leading to hyponatremia. Adding sodium and potassium helps restore proper osmotic pressure in cells.