Sequence Length Calculator

Analyze peptide sequence length, classification, physical dimensions, and size-related properties.

Sequence Input

15 characters entered

Presets

Residues

Polypeptide

Classification

1,668

Est. MW (Da)

57.0 Å

Extended Length

Size Analysis

Extended chain length

57.0 Å (5.70 nm)

~3.8 Å per residue (fully extended β-strand)

Compact diameter (estimate)

7.4 Å (0.74 nm)

Globular folded estimate

Peptide bonds

Estimated MW (avg residue = 110 Da)

1,668 Da

Classification Scale

Dipeptide2 amino acids

Tripeptide3 amino acids

Oligopeptide4-10 amino acids

Polypeptide11-50 amino acids

← Your peptide

Protein50+ amino acids

Sequence (15 residues)

GEPPPGKPAD|DAGLV

Markers every 10 residues

Physical dimensions are estimates based on average values. Actual size depends on secondary structure, solvent, and folding state. For educational purposes.

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