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Fly Tying Calculators

Free fly tying calculators for hook sizing, material weight, thread coverage, and pattern scaling.
Essential tools for fly fishers and tiers.

Fly Tying Hook Size Calculator

Find the right hook size and style for any fly pattern. Covers dry, wet, nymph, and streamer hooks.

Fly Tying Material Weight Calculator

Calculate material weights for balanced fly patterns. Ensure proper sink rate and drift for nymphs and streamers.
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