# HuntFishSport > HuntFishSport is a free solunar theory calculator and outdoor activity timing app for hunters and anglers. It uses moon phases, lunar position, and real-time weather data to predict the best times to fish and hunt at any location worldwide. ## What It Does HuntFishSport calculates solunar periods — the windows when fish and game are most active based on the moon's gravitational position relative to a given location. Solunar theory was developed by John Alden Knight in 1926 and remains one of the most widely used timing systems among serious hunters and anglers. Every forecast cross-references live weather data (barometric pressure, wind speed and direction, temperature, precipitation) to produce a composite 0–100 activity score. A strong solunar period during a falling barometer is worth far more than one during stable high pressure — the rating engine weighs all of it. ## Core App - [Solunar Forecast (main calculator)](https://huntfishsport.com/): Enter any location to get today's major/minor solunar periods, moon phase, moonrise/moonset times, and a weather-adjusted activity rating for every hour of the day. - [Best Fishing Times Today](https://huntfishsport.com/best-fishing-times-today): Location-based solunar fishing forecast with species-specific activity ratings. - [Best Hunting Times Today](https://huntfishsport.com/best-hunting-times-today): Moon phase-driven hunting forecast optimized for whitetail deer, elk, turkey, and waterfowl. - [Solunar Table Today](https://huntfishsport.com/solunar-table-today): Full daily solunar table showing all four periods with moon phase data. - [Best Bass Fishing Times](https://huntfishsport.com/best-bass-fishing-times): Largemouth and smallmouth bass-specific solunar timing. - [Best Deer Hunting Times](https://huntfishsport.com/best-deer-hunting-times): Whitetail deer movement prediction using solunar + rut data. ## Solunar Guides - [Solunar Theory Explained](https://huntfishsport.com/guide/solunar-theory): How solunar theory works, who invented it, and how to apply it to fishing and hunting. Covers major vs. minor periods, moon phase multipliers, and the gravitational mechanism. - [Enhanced Solunar Ratings](https://huntfishsport.com/guide/enhanced-solunar-ratings): How HuntFishSport's 0–100 composite scoring system works, including weather modifiers. - [Best Fishing Times Guide](https://huntfishsport.com/guide/best-fishing-times): Species-by-species guide to peak fishing windows, seasonal patterns, and how to combine solunar data with local conditions. - [Peak Conditions Finder Guide](https://huntfishsport.com/guide/peak-conditions-finder): How to identify days when solunar timing, weather, and moon phase all align. - [Best Day Finder Guide](https://huntfishsport.com/guide/best-day-finder): How to use the 30-day best-day comparison tool. - [Super-Peak Windows Guide](https://huntfishsport.com/guide/super-peak-windows): Understanding the rare convergence of multiple peak factors. - [Double Drop Detector Guide](https://huntfishsport.com/guide/double-drop-detector): How barometric double-drops create extraordinary feeding windows. - [Terrain Analysis Guide](https://huntfishsport.com/guide/terrain-analysis): Using elevation profiles and terrain data for hunting stand placement. - [Thermal Scout Guide](https://huntfishsport.com/guide/thermal-scout): How thermals and wind currents affect deer and turkey movement. ## Hunting & Fishing Calculators (20 free tools) - [Fish Weight Calculator](https://huntfishsport.com/tools/fish-weight-calculator): Estimates fish weight from length and girth using species-specific divisors. Supports 20+ species including largemouth bass, walleye, trout, catfish, crappie, pike, salmon, and more. - [Game Weight Calculator](https://huntfishsport.com/tools/game-weight-calculator): Calculates live weight, field dressed weight, and boneless meat yield for deer (whitetail, mule), elk, bear, turkey, wild hog, pronghorn, and moose. - [Ballistics Calculator](https://huntfishsport.com/tools/ballistics-calculator): Bullet drop tables for 12 common hunting calibers (.243, .308, .30-06, 6.5 Creedmoor, .300 Win Mag, etc.) from 100–400 yards with wind drift. - [Bowhunting Calculator](https://huntfishsport.com/tools/bowhunting-calculator): Calculates kinetic energy, momentum, FOC (front of center), and arrow spine recommendations for bowhunters. - [Antler Score Calculator](https://huntfishsport.com/tools/antler-score-calculator): Boone & Crockett and Pope & Young scoring estimator for whitetail, mule deer, elk, moose, and pronghorn. - [Venison Aging Calculator](https://huntfishsport.com/tools/venison-aging-calculator): Optimal hang time and aging temperature guidelines to maximize tenderness. - [Shotgun Choke Selector](https://huntfishsport.com/tools/shotgun-choke-selector): Recommends choke constriction and shot size by species (waterfowl, upland, turkey, deer) and shot material (lead, steel, bismuth, TSS). - [Ice Thickness Safety Calculator](https://huntfishsport.com/tools/ice-thickness-calculator): Safe ice thickness guidelines for walking, snowmobiles, ATVs, and vehicles. Includes ice color/quality factors. - [Catch & Release Stress Calculator](https://huntfishsport.com/tools/catch-release-calculator): Fish survival probability based on water temperature, fight time, handling practices, and species. - [Ballistics Calculator](https://huntfishsport.com/tools/ballistics-calculator): External ballistics, bullet drop, and wind drift for hunting rifle calibers. - [Food Plot Calculator](https://huntfishsport.com/tools/food-plot-calculator): Seed quantity and fertilizer amounts for deer food plots by plot size, soil type, and crop species. - [Knot Strength Calculator](https://huntfishsport.com/tools/knot-strength-calculator): Knot efficiency ratings for popular fishing knots (Palomar, Clinch, Uni, FG, etc.) by line type and diameter. - [Trolling Depth Calculator](https://huntfishsport.com/tools/trolling-depth-calculator): Estimates lure running depth based on line out, trolling speed, line weight, and diver/weight type. - [Reel Retrieve Rate Calculator](https://huntfishsport.com/tools/reel-retrieve-calculator): Calculates line retrieve per crank (inches) based on gear ratio and spool diameter. - [Fly Fishing Calculator](https://huntfishsport.com/tools/fly-fishing-calculator): Leader length, tippet size, and fly rod weight matching for different fishing conditions and species. - [Wind Chill & Heat Index Calculator](https://huntfishsport.com/tools/wind-chill-calculator): Feels-like temperature, frostbite risk time, and heat stroke risk index for outdoor safety planning. - [Treestand Shot Distance Calculator](https://huntfishsport.com/tools/treestand-calculator): True horizontal distance and aim point adjustment for bowhunters shooting from elevated stands. - [Sunrise & Sunset Calculator](https://huntfishsport.com/tools/sunrise-sunset-calculator): Precise sunrise, sunset, civil twilight, and nautical twilight times for any location. Critical for hunting legal shooting hours. - [Bag Limit Tracker](https://huntfishsport.com/tools/bag-limit-tracker): Daily and possession limit tracking for fish and game by species. - [Water Level & Flow Calculator](https://huntfishsport.com/tools/water-level-calculator): River gauge interpretation for fishing — how rising/falling water levels affect fishing conditions. - [Trail Distance Calculator](https://huntfishsport.com/tools/trail-calculator): Pack-out distance estimation with elevation gain for backcountry hunters. ## Fishing Times by Species - [Bass Fishing Times](https://huntfishsport.com/fishing-times/bass) - [Walleye Fishing Times](https://huntfishsport.com/fishing-times/walleye) - [Trout Fishing Times](https://huntfishsport.com/fishing-times/trout) - [Catfish Fishing Times](https://huntfishsport.com/fishing-times/catfish) - [Crappie Fishing Times](https://huntfishsport.com/fishing-times/crappie) - [Pike Fishing Times](https://huntfishsport.com/fishing-times/pike) - [Salmon Fishing Times](https://huntfishsport.com/fishing-times/salmon) - [Panfish Fishing Times](https://huntfishsport.com/fishing-times/panfish) ## Hunting Times by Species - [Whitetail Deer Hunting Times](https://huntfishsport.com/hunting-times/whitetail-deer) - [Turkey Hunting Times](https://huntfishsport.com/hunting-times/turkey) - [Elk Hunting Times](https://huntfishsport.com/hunting-times/elk) - [Duck Hunting Times](https://huntfishsport.com/hunting-times/duck) - [Pheasant Hunting Times](https://huntfishsport.com/hunting-times/pheasant) - [Bear Hunting Times](https://huntfishsport.com/hunting-times/bear) ## Monthly Solunar Tables - [January Solunar Table](https://huntfishsport.com/solunar/january) - [February Solunar Table](https://huntfishsport.com/solunar/february) - [March Solunar Table](https://huntfishsport.com/solunar/march) - [April Solunar Table](https://huntfishsport.com/solunar/april) - [May Solunar Table](https://huntfishsport.com/solunar/may) - [June Solunar Table](https://huntfishsport.com/solunar/june) - [July Solunar Table](https://huntfishsport.com/solunar/july) - [August Solunar Table](https://huntfishsport.com/solunar/august) - [September Solunar Table](https://huntfishsport.com/solunar/september) - [October Solunar Table](https://huntfishsport.com/solunar/october) - [November Solunar Table](https://huntfishsport.com/solunar/november) - [December Solunar Table](https://huntfishsport.com/solunar/december) ## Seasonal Guides - [Spring Fishing Guide](https://huntfishsport.com/fishing/spring-fishing-guide) - [Fall Fishing Guide](https://huntfishsport.com/fishing/fall-fishing-guide) - [Deer Rut Guide](https://huntfishsport.com/hunting/deer-rut-guide) - [Turkey Season Guide](https://huntfishsport.com/hunting/turkey-season-guide) - [Waterfowl Migration Timing](https://huntfishsport.com/hunting/waterfowl-migration-timing) ## Blog - [Solunar Theory: Does the Science Hold Up?](https://huntfishsport.com/blog/solunar-theory-science) - [How to Read a Solunar Table](https://huntfishsport.com/blog/how-to-read-solunar-table) - [Best Fishing Month by Species](https://huntfishsport.com/blog/best-fishing-month-by-species) - [Spring Turkey Hunting: Best Times to Call](https://huntfishsport.com/blog/spring-turkey-hunting-best-times) - [2026 Whitetail Rut Prediction](https://huntfishsport.com/blog/2026-whitetail-rut-prediction) - [Ice Fishing Safety: How Thick Is Safe?](https://huntfishsport.com/blog/ice-fishing-safety-how-thick-is-safe) - [Understanding Deer Rut Phases](https://huntfishsport.com/blog/understanding-deer-rut-phases) - [Best Hunting & Fishing Apps 2026](https://huntfishsport.com/blog/best-hunting-fishing-apps-2026) ## FAQ - [Solunar Theory FAQ](https://huntfishsport.com/faq): Answers to the most common questions about solunar theory, moon phases, major vs. minor periods, and how to apply solunar predictions to fishing and hunting. ## Best Places to Hunt & Fish Location-specific hunting and fishing guides for all 50 US states, Canadian provinces, and hundreds of cities. - [Best Places to Hunt & Fish (index)](https://huntfishsport.com/best-places-to-hunt-fish) - State example: [Best Places to Hunt & Fish in Texas](https://huntfishsport.com/best-places-to-hunt-fish/texas) - City example: [Best Places to Hunt & Fish near Austin, TX](https://huntfishsport.com/best-places-to-hunt-fish/texas/austin) ## About & Pricing HuntFishSport is a Progressive Web App available on web, Android (Google Play), and iOS (App Store). **Free plan**: Solunar forecast for up to 2 saved locations, 3-day forecast window, all 20 calculators, moon phase data. **Pro plan** ($9.99/month or $79.99/year): 14-day forecasts, unlimited saved locations, weather-enhanced ratings, Best Day Finder (30-day calendar view), Super-Peak Windows, Double Drop Detector, Multi-Location Comparison, Terrain Analysis, Thermal Scout, ad-free experience. 7-day free trial, no credit card required. - [About HuntFishSport](https://huntfishsport.com/about) - [Pro Features](https://huntfishsport.com/pro) - [Pricing](https://huntfishsport.com/subscription)