Win Loss Ratio Calculator
The Win Loss Ratio Calculator computes your win rate, loss rate, and win-to-loss ratio from total wins and losses. Track performance in sports, trading, gaming, or sales with clear percentage breakdowns and streak analysis.
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What is Win Loss Ratio?
Win loss ratio is the number of wins divided by the number of losses. A trader with 30 wins and 20 losses has a 1.5:1 win-loss ratio. Combined with average win/loss size, this ratio determines overall profitability. A 1:1 ratio is break-even only if average win size equals average loss size.
Win loss ratios are tracked in sports (team records), trading (profit/loss analysis), sales (deal conversion), gaming (player rankings), and legal (case outcomes). The ratio alone doesn't tell the full story — the magnitude of wins versus losses matters equally.
使用される計算公式・方程式
この計算ツールは5つの主要な公式を使用しています：
1 Win Loss Ratio ▼
45 wins and 30 losses: W/L = 45/30 = 1.50:1.
2 Win Rate Percentage ▼
45 wins in 75 games: Win Rate = (45/75) × 100 = 60%.
3 Profit Factor (Trading) ▼
30 wins × $500 avg / 20 losses × $400 avg = $15,000/$8,000 = 1.875.
比率計算ツールの使い方
この比率計算ツールは、以下の3ステップで簡単にご利用いただけます：
数値を入力
入力欄に既知の比率の値を入力します。求めたい未知数の入力欄は空欄のままにしておきます。
モードを選択
比率モード（解く、簡素化、スケーリング）を選択します。各モードで異なる計算式が適用されます。
結果を確認
計算するボタンを押します。結果画面に答えと、視覚的な比率バー、円グラフ、詳細なステップバイステップの解決プロセスが表示されます。
実例問題と段階的な解説
本比率計算ツールを使って、以下の3つの例題をステップバイステップで解決するプロセスです：
入力 1 Team record: 42 wins, 28 losses
入力 2 Trading: 55 wins ($200 avg), 45 losses ($150 avg)
入力 3 Sales: 18 deals won, 32 lost, 10 pending
よくある質問 (FAQ)
What is a good win loss ratio? ▼
In sports, above 1.0 (50%+) is winning. In trading, 1.0 is break-even only if average win = average loss. Many successful traders have a 0.8:1 ratio but win big and lose small, still profiting overall.
How does win loss ratio affect trading profitability? ▼
Profitability depends on BOTH win rate and risk-reward ratio. A 40% win rate with 3:1 reward-risk is profitable: (0.4 × 3) - (0.6 × 1) = 0.6 units profit per trade. Win rate alone is misleading.
What is the difference between win rate and win loss ratio? ▼
Win rate = wins/total (percentage of all outcomes that are wins). Win-loss ratio = wins/losses (direct comparison). A 60% win rate means 60 wins in 100 games, which is a 60:40 = 1.5:1 W/L ratio.
How do I improve my win loss ratio? ▼
In trading: improve entry criteria, use tighter stops, and let winners run. In sports: analyze losses for patterns. In sales: qualify leads better before investing time.
Should I track draws/ties in win loss ratio? ▼
Draws can be excluded (W/L ignoring draws), included as half-wins, or tracked separately. In chess ratings, draws count as half a point. In sales, 'no decision' outcomes are tracked separately from losses.